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Finding the Fourth Proportional to 8,591.49, 11,855.85 and 4,815.04

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Solution

The fourth proportional to 8,591.49, 11,855.85 and 4,815.04 is: 6,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.49 : 11,855.85 = 4,815.04 : x
  2. Step 2: Convert to fraction form
    8,591.49/11,855.85 = 4,815.04/x
  3. Step 3: Cross multiply
    8,591.49x = 11,855.85 × 4,815.04
  4. Step 4: Simplify right side
    8,591.49x = 57,086,391.98
  5. Step 5: Solve for x
    x = 57,086,391.98/8,591.49
  6. Step 6: Final answer
    x = 6,644.53

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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.