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Finding the Fourth Proportional to 8,787.42, 13,171.01 and 4,884.03

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Solution

The fourth proportional to 8,787.42, 13,171.01 and 4,884.03 is: 7,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.42 : 13,171.01 = 4,884.03 : x
  2. Step 2: Convert to fraction form
    8,787.42/13,171.01 = 4,884.03/x
  3. Step 3: Cross multiply
    8,787.42x = 13,171.01 × 4,884.03
  4. Step 4: Simplify right side
    8,787.42x = 64,327,583.55
  5. Step 5: Solve for x
    x = 64,327,583.55/8,787.42
  6. Step 6: Final answer
    x = 7,320.42

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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.