Home / 15,892.46-21,929.15-9,517.55

Finding the Fourth Proportional to 15,892.46, 21,929.15 and 9,517.55

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Solution

The fourth proportional to 15,892.46, 21,929.15 and 9,517.55 is: 13,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,892.46 : 21,929.15 = 9,517.55 : x
  2. Step 2: Convert to fraction form
    15,892.46/21,929.15 = 9,517.55/x
  3. Step 3: Cross multiply
    15,892.46x = 21,929.15 × 9,517.55
  4. Step 4: Simplify right side
    15,892.46x = 208,711,860.20
  5. Step 5: Solve for x
    x = 208,711,860.20/15,892.46
  6. Step 6: Final answer
    x = 13,132.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.