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Finding the Fourth Proportional to 8,914.38, 13,372.28 and 2,758.38

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Solution

The fourth proportional to 8,914.38, 13,372.28 and 2,758.38 is: 4,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.38 : 13,372.28 = 2,758.38 : x
  2. Step 2: Convert to fraction form
    8,914.38/13,372.28 = 2,758.38/x
  3. Step 3: Cross multiply
    8,914.38x = 13,372.28 × 2,758.38
  4. Step 4: Simplify right side
    8,914.38x = 36,885,829.71
  5. Step 5: Solve for x
    x = 36,885,829.71/8,914.38
  6. Step 6: Final answer
    x = 4,137.79

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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.