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Finding the Fourth Proportional to 8,290.73, 12,425.12 and 3,354.52

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Solution

The fourth proportional to 8,290.73, 12,425.12 and 3,354.52 is: 5,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.73 : 12,425.12 = 3,354.52 : x
  2. Step 2: Convert to fraction form
    8,290.73/12,425.12 = 3,354.52/x
  3. Step 3: Cross multiply
    8,290.73x = 12,425.12 × 3,354.52
  4. Step 4: Simplify right side
    8,290.73x = 41,680,234.64
  5. Step 5: Solve for x
    x = 41,680,234.64/8,290.73
  6. Step 6: Final answer
    x = 5,027.33

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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.