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Finding the Fourth Proportional to 8,930.38, 13,394.04 and 4,917.82

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Solution

The fourth proportional to 8,930.38, 13,394.04 and 4,917.82 is: 7,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.38 : 13,394.04 = 4,917.82 : x
  2. Step 2: Convert to fraction form
    8,930.38/13,394.04 = 4,917.82/x
  3. Step 3: Cross multiply
    8,930.38x = 13,394.04 × 4,917.82
  4. Step 4: Simplify right side
    8,930.38x = 65,869,477.79
  5. Step 5: Solve for x
    x = 65,869,477.79/8,930.38
  6. Step 6: Final answer
    x = 7,375.89

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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.