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Finding the Fourth Proportional to 8,951.62, 13,422.88 and 4,737.20

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Solution

The fourth proportional to 8,951.62, 13,422.88 and 4,737.20 is: 7,103.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.62 : 13,422.88 = 4,737.20 : x
  2. Step 2: Convert to fraction form
    8,951.62/13,422.88 = 4,737.20/x
  3. Step 3: Cross multiply
    8,951.62x = 13,422.88 × 4,737.20
  4. Step 4: Simplify right side
    8,951.62x = 63,586,867.14
  5. Step 5: Solve for x
    x = 63,586,867.14/8,951.62
  6. Step 6: Final answer
    x = 7,103.39

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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.