Home / 8,727-13,515

Finding the Third Proportional to 8,727 and 13,515

Calculator

Solution

The third proportional to 8,727 and 13,515 is: 20,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727 : 13,515 = 13,515 : x
  2. Step 2: Convert to fraction form
    8,727/13,515 = 13,515/x
  3. Step 3: Cross multiply
    8,727x = 13,515 × 13,515
  4. Step 4: Simplify right side
    8,727x = 182,655,225
  5. Step 5: Solve for x
    x = 182,655,225/8,727
  6. Step 6: Final answer
    x = 20,929.90

Related Problems

Find third proportional to 4,363.50 and 6,757.50
Half scale
Find third proportional to 17,454 and 27,030
Double scale
Find third proportional to 8,729 and 13,518
Similar ratio
Find third proportional to 13,090.50 and 20,272.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.