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Finding the Fourth Proportional to 8,654.04, 12,982.13 and 3,388.36

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Solution

The fourth proportional to 8,654.04, 12,982.13 and 3,388.36 is: 5,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.04 : 12,982.13 = 3,388.36 : x
  2. Step 2: Convert to fraction form
    8,654.04/12,982.13 = 3,388.36/x
  3. Step 3: Cross multiply
    8,654.04x = 12,982.13 × 3,388.36
  4. Step 4: Simplify right side
    8,654.04x = 43,988,129.29
  5. Step 5: Solve for x
    x = 43,988,129.29/8,654.04
  6. Step 6: Final answer
    x = 5,082.96

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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.