Finding the Third Proportional to 8,272.50 and 11,242.50
Calculator
Solution
The third proportional to 8,272.50 and 11,242.50 is: 15,278.79
Step by Step Solution
- Step 1: Write the proportion equation
8,272.50 : 11,242.50 = 11,242.50 : x - Step 2: Convert to fraction form
8,272.50/11,242.50 = 11,242.50/x - Step 3: Cross multiply
8,272.50x = 11,242.50 × 11,242.50 - Step 4: Simplify right side
8,272.50x = 126,393,806.25 - Step 5: Solve for x
x = 126,393,806.25/8,272.50 - Step 6: Final answer
x = 15,278.79
Related Problems
Find third proportional to 4,136.25 and 5,621.25
Half scale
Find third proportional to 16,545 and 22,485
Double scale
Find third proportional to 8,275 and 11,245
Similar ratio
Find third proportional to 12,408.75 and 16,863.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.