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Finding the Fourth Proportional to 8,702.79, 13,031.01 and 5,934.90

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Solution

The fourth proportional to 8,702.79, 13,031.01 and 5,934.90 is: 8,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.79 : 13,031.01 = 5,934.90 : x
  2. Step 2: Convert to fraction form
    8,702.79/13,031.01 = 5,934.90/x
  3. Step 3: Cross multiply
    8,702.79x = 13,031.01 × 5,934.90
  4. Step 4: Simplify right side
    8,702.79x = 77,337,741.25
  5. Step 5: Solve for x
    x = 77,337,741.25/8,702.79
  6. Step 6: Final answer
    x = 8,886.55

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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.