What is 12.78 percent of 5 - 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 5 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 5 is 100%, so we can write it down as 5=100%.
4. We know, that x is 12.78% of the output value, so we can write it down as x=12.78%.
5. Now we have two simple equations:
1) 5=100%
2) x=12.78%
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:
5/x=100%/12.78%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 12.78% of 5

5/x=100/12.78
(5/x)*x=(100/12.78)*x       - we multiply both sides of the equation by x
5=7.8247261345853*x       - we divide both sides of the equation by (7.8247261345853) to get x
5/7.8247261345853=x
0.639=x
x=0.639

now we have:
12.78% of 5=0.639