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Finding the Fourth Proportional to 9,943.38, 13,722.09 and 5,467.38

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Solution

The fourth proportional to 9,943.38, 13,722.09 and 5,467.38 is: 7,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,943.38 : 13,722.09 = 5,467.38 : x
  2. Step 2: Convert to fraction form
    9,943.38/13,722.09 = 5,467.38/x
  3. Step 3: Cross multiply
    9,943.38x = 13,722.09 × 5,467.38
  4. Step 4: Simplify right side
    9,943.38x = 75,023,916.40
  5. Step 5: Solve for x
    x = 75,023,916.40/9,943.38
  6. Step 6: Final answer
    x = 7,545.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.