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Finding the Fourth Proportional to 8,753.04, 13,121.70 and 3,491.70

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Solution

The fourth proportional to 8,753.04, 13,121.70 and 3,491.70 is: 5,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.04 : 13,121.70 = 3,491.70 : x
  2. Step 2: Convert to fraction form
    8,753.04/13,121.70 = 3,491.70/x
  3. Step 3: Cross multiply
    8,753.04x = 13,121.70 × 3,491.70
  4. Step 4: Simplify right side
    8,753.04x = 45,817,039.89
  5. Step 5: Solve for x
    x = 45,817,039.89/8,753.04
  6. Step 6: Final answer
    x = 5,234.41

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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.