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Finding the Fourth Proportional to 8,991.52, 13,489.91 and 4,612.03

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Solution

The fourth proportional to 8,991.52, 13,489.91 and 4,612.03 is: 6,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.52 : 13,489.91 = 4,612.03 : x
  2. Step 2: Convert to fraction form
    8,991.52/13,489.91 = 4,612.03/x
  3. Step 3: Cross multiply
    8,991.52x = 13,489.91 × 4,612.03
  4. Step 4: Simplify right side
    8,991.52x = 62,215,869.62
  5. Step 5: Solve for x
    x = 62,215,869.62/8,991.52
  6. Step 6: Final answer
    x = 6,919.39

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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.