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Finding the Fourth Proportional to 8,402.82, 12,606.30 and 3,473.87

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Solution

The fourth proportional to 8,402.82, 12,606.30 and 3,473.87 is: 5,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.82 : 12,606.30 = 3,473.87 : x
  2. Step 2: Convert to fraction form
    8,402.82/12,606.30 = 3,473.87/x
  3. Step 3: Cross multiply
    8,402.82x = 12,606.30 × 3,473.87
  4. Step 4: Simplify right side
    8,402.82x = 43,792,584.35
  5. Step 5: Solve for x
    x = 43,792,584.35/8,402.82
  6. Step 6: Final answer
    x = 5,211.66

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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.