Home / 8,654.40-12,972.33-6,181.72

Finding the Fourth Proportional to 8,654.40, 12,972.33 and 6,181.72

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Solution

The fourth proportional to 8,654.40, 12,972.33 and 6,181.72 is: 9,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.40 : 12,972.33 = 6,181.72 : x
  2. Step 2: Convert to fraction form
    8,654.40/12,972.33 = 6,181.72/x
  3. Step 3: Cross multiply
    8,654.40x = 12,972.33 × 6,181.72
  4. Step 4: Simplify right side
    8,654.40x = 80,191,279.38
  5. Step 5: Solve for x
    x = 80,191,279.38/8,654.40
  6. Step 6: Final answer
    x = 9,265.95

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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.