What is 1.687 percent of 12.81 - 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 12.81 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 12.81 is 100%, so we can write it down as 12.81=100%.
4. We know, that x is 1.687% of the output value, so we can write it down as x=1.687%.
5. Now we have two simple equations:
1) 12.81=100%
2) x=1.687%
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:
12.81/x=100%/1.687%
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 1.687% of 12.81

12.81/x=100/1.687
(12.81/x)*x=(100/1.687)*x       - we multiply both sides of the equation by x
12.81=59.2768227623*x       - we divide both sides of the equation by (59.2768227623) to get x
12.81/59.2768227623=x
0.2161047=x
x=0.2161047

now we have:
1.687% of 12.81=0.2161047