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Finding the Fourth Proportional to 10,902.20, 15,044.58 and 5,934.20

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Solution

The fourth proportional to 10,902.20, 15,044.58 and 5,934.20 is: 8,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.20 : 15,044.58 = 5,934.20 : x
  2. Step 2: Convert to fraction form
    10,902.20/15,044.58 = 5,934.20/x
  3. Step 3: Cross multiply
    10,902.20x = 15,044.58 × 5,934.20
  4. Step 4: Simplify right side
    10,902.20x = 89,277,546.64
  5. Step 5: Solve for x
    x = 89,277,546.64/10,902.20
  6. Step 6: Final answer
    x = 8,188.95

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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.