What Divided by 4 Equals 18?
Methods
Setting up the problem:
In a problem like this, the “what” means that we’re working with a variable. The most common variable used in math is “x”. So, we could say what number, x, when divided by 4, equals 18?
Solving What Divided by 4 Equals 18
Here’s how you would set up this question as an equation:
x
4
=
18
\frac{x}{4} = 18
4 x = 18
The goal of the problem is to solve for x. To do this we need to change the equation so that x is alone on one side of the equation.In this case, we can do that by multiplying both sides of the equation by 4, resulting in this equation:
x
=
18
∗
4
x = 18*4
x = 18 ∗ 4
Then we simplify and find our answer:
x
=
72
x = 72
x = 72
So, the answer to the question “What divided by 4 equals 18?” is 72.To prove this, we can take the original problem:
x
4
=
18
\frac{x}{4} = 18
4 x = 18
And insert 72 in the place of x:
72
4
=
18
\frac{72}{4} = 18
4 72 = 18
Because this is true, the answer must be correct.
Practice Other Division Problems Like This One
If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too!
What divided by 37 equals 10?
2 divided by what equals 59?
What is 15/6 divided by 11?
What is 8/2 divided by 14/10?
What is 98 divided by 20/12?