Home / 8,976-13,431

Finding the Third Proportional to 8,976 and 13,431

Calculator

Solution

The third proportional to 8,976 and 13,431 is: 20,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976 : 13,431 = 13,431 : x
  2. Step 2: Convert to fraction form
    8,976/13,431 = 13,431/x
  3. Step 3: Cross multiply
    8,976x = 13,431 × 13,431
  4. Step 4: Simplify right side
    8,976x = 180,391,761
  5. Step 5: Solve for x
    x = 180,391,761/8,976
  6. Step 6: Final answer
    x = 20,097.12

Related Problems

Find third proportional to 4,488 and 6,715.50
Half scale
Find third proportional to 17,952 and 26,862
Double scale
Find third proportional to 8,978 and 13,434
Similar ratio
Find third proportional to 13,464 and 20,146.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.