Finding the Third Proportional to 5,553 and 7,715
Calculator
Solution
The third proportional to 5,553 and 7,715 is: 10,718.75
Step by Step Solution
- Step 1: Write the proportion equation
5,553 : 7,715 = 7,715 : x - Step 2: Convert to fraction form
5,553/7,715 = 7,715/x - Step 3: Cross multiply
5,553x = 7,715 × 7,715 - Step 4: Simplify right side
5,553x = 59,521,225 - Step 5: Solve for x
x = 59,521,225/5,553 - Step 6: Final answer
x = 10,718.75
Related Problems
Find third proportional to 2,776.50 and 3,857.50
Half scale
Find third proportional to 11,106 and 15,430
Double scale
Find third proportional to 5,555 and 7,718
Similar ratio
Find third proportional to 8,329.50 and 11,572.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.