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Finding the Fourth Proportional to 8,472.33, 12,702.33 and 3,543.39

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Solution

The fourth proportional to 8,472.33, 12,702.33 and 3,543.39 is: 5,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.33 : 12,702.33 = 3,543.39 : x
  2. Step 2: Convert to fraction form
    8,472.33/12,702.33 = 3,543.39/x
  3. Step 3: Cross multiply
    8,472.33x = 12,702.33 × 3,543.39
  4. Step 4: Simplify right side
    8,472.33x = 45,009,309.10
  5. Step 5: Solve for x
    x = 45,009,309.10/8,472.33
  6. Step 6: Final answer
    x = 5,312.51

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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.