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Finding the Fourth Proportional to 8,697.28, 13,046.08 and 2,123.52

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Solution

The fourth proportional to 8,697.28, 13,046.08 and 2,123.52 is: 3,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.28 : 13,046.08 = 2,123.52 : x
  2. Step 2: Convert to fraction form
    8,697.28/13,046.08 = 2,123.52/x
  3. Step 3: Cross multiply
    8,697.28x = 13,046.08 × 2,123.52
  4. Step 4: Simplify right side
    8,697.28x = 27,703,611.80
  5. Step 5: Solve for x
    x = 27,703,611.80/8,697.28
  6. Step 6: Final answer
    x = 3,185.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.