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Finding the Fourth Proportional to 8,553.11, 12,829.58 and 2,709.72

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Solution

The fourth proportional to 8,553.11, 12,829.58 and 2,709.72 is: 4,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.11 : 12,829.58 = 2,709.72 : x
  2. Step 2: Convert to fraction form
    8,553.11/12,829.58 = 2,709.72/x
  3. Step 3: Cross multiply
    8,553.11x = 12,829.58 × 2,709.72
  4. Step 4: Simplify right side
    8,553.11x = 34,764,569.52
  5. Step 5: Solve for x
    x = 34,764,569.52/8,553.11
  6. Step 6: Final answer
    x = 4,064.55

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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.