1292.9 is what percent of 12139 - 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 12139 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 12139, so we can write it down as 100%=12139.
4. We know, that x% equals 1292.9 of the output value, so we can write it down as x%=1292.9.
5. Now we have two simple equations:
1) 100%=12139
2) x%=1292.9
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%=12139/1292.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1292.9 is what percent of 12139

100%/x%=12139/1292.9
(100/x)*x=(12139/1292.9)*x       - we multiply both sides of the equation by x
100=9.3889705313636*x       - we divide both sides of the equation by (9.3889705313636) to get x
100/9.3889705313636=x
10.650794958399=x
x=10.650794958399

now we have:
1292.9 is 10.650794958399% of 12139