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Finding the Fourth Proportional to 8,491.02, 12,737.39 and 2,943.09

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Solution

The fourth proportional to 8,491.02, 12,737.39 and 2,943.09 is: 4,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.02 : 12,737.39 = 2,943.09 : x
  2. Step 2: Convert to fraction form
    8,491.02/12,737.39 = 2,943.09/x
  3. Step 3: Cross multiply
    8,491.02x = 12,737.39 × 2,943.09
  4. Step 4: Simplify right side
    8,491.02x = 37,487,285.14
  5. Step 5: Solve for x
    x = 37,487,285.14/8,491.02
  6. Step 6: Final answer
    x = 4,414.93

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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.