Solve the proportion b/10 = 6/15
60
4
15
5
To solve the proportion b/10 = 6/15, we can cross-multiply.
Cross-multiplying gives us 15b = 6 * 10.
Simplifying the right side gives us 15b = 60.
To isolate b, we can divide both sides of the equation by 15.
15b/15 = 60/15.
Simplifying both sides gives us b = 4.
Therefore, the solution to the proportion b/10 = 6/15 is b = 4.