13 is what percent of 437 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 437 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 437, so we can write it down as 100%=437.
4. We know, that x% equals 13 of the output value, so we can write it down as x%=13.
5. Now we have two simple equations:
1) 100%=437
2) x%=13
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=437/13
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13 is what percent of 437

100%/x%=437/13
(100/x)*x=(437/13)*x       - we multiply both sides of the equation by x
100=33.615384615385*x       - we divide both sides of the equation by (33.615384615385) to get x
100/33.615384615385=x
2.974828375286=x
x=2.974828375286

now we have:
13 is 2.974828375286% of 437