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Finding the Fourth Proportional to 8,869.52, 13,305.72 and 2,630.14

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Solution

The fourth proportional to 8,869.52, 13,305.72 and 2,630.14 is: 3,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.52 : 13,305.72 = 2,630.14 : x
  2. Step 2: Convert to fraction form
    8,869.52/13,305.72 = 2,630.14/x
  3. Step 3: Cross multiply
    8,869.52x = 13,305.72 × 2,630.14
  4. Step 4: Simplify right side
    8,869.52x = 34,995,906.40
  5. Step 5: Solve for x
    x = 34,995,906.40/8,869.52
  6. Step 6: Final answer
    x = 3,945.64

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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.