To start, first make sure both units are the same, so we will start by converting 1.5 kilometers to meters.
Because one kilometer is equal to 1000 meters, multiply 1.5 by 1000 to get 1500 meters.
Now, set up a proportion in this format:
part/whole=percent/100
This should look like this where x is the missing percent:
15/1500=x/100
Now, cross multiply:
15*100=1500x
1500=1500x
Finally, divide both sides by 1500 to get that x=1.
Therefore, 15m is 1% of 1.5km.
