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Finding the Fourth Proportional to 8,702.58, 13,043.17 and 3,432.30

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Solution

The fourth proportional to 8,702.58, 13,043.17 and 3,432.30 is: 5,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.58 : 13,043.17 = 3,432.30 : x
  2. Step 2: Convert to fraction form
    8,702.58/13,043.17 = 3,432.30/x
  3. Step 3: Cross multiply
    8,702.58x = 13,043.17 × 3,432.30
  4. Step 4: Simplify right side
    8,702.58x = 44,768,072.39
  5. Step 5: Solve for x
    x = 44,768,072.39/8,702.58
  6. Step 6: Final answer
    x = 5,144.23

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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.