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Finding the Fourth Proportional to 8,711.52, 12,021.60 and 4,732.56

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Solution

The fourth proportional to 8,711.52, 12,021.60 and 4,732.56 is: 6,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.52 : 12,021.60 = 4,732.56 : x
  2. Step 2: Convert to fraction form
    8,711.52/12,021.60 = 4,732.56/x
  3. Step 3: Cross multiply
    8,711.52x = 12,021.60 × 4,732.56
  4. Step 4: Simplify right side
    8,711.52x = 56,892,943.30
  5. Step 5: Solve for x
    x = 56,892,943.30/8,711.52
  6. Step 6: Final answer
    x = 6,530.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.