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Finding the Fourth Proportional to 15,251.80, 22,892.10 and 9,419.80

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Solution

The fourth proportional to 15,251.80, 22,892.10 and 9,419.80 is: 14,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.80 : 22,892.10 = 9,419.80 : x
  2. Step 2: Convert to fraction form
    15,251.80/22,892.10 = 9,419.80/x
  3. Step 3: Cross multiply
    15,251.80x = 22,892.10 × 9,419.80
  4. Step 4: Simplify right side
    15,251.80x = 215,639,003.58
  5. Step 5: Solve for x
    x = 215,639,003.58/15,251.80
  6. Step 6: Final answer
    x = 14,138.59

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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.