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Finding the Fourth Proportional to 7,344, 11,016 and 6,974.88

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Solution

The fourth proportional to 7,344, 11,016 and 6,974.88 is: 10,462.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344 : 11,016 = 6,974.88 : x
  2. Step 2: Convert to fraction form
    7,344/11,016 = 6,974.88/x
  3. Step 3: Cross multiply
    7,344x = 11,016 × 6,974.88
  4. Step 4: Simplify right side
    7,344x = 76,835,278.08
  5. Step 5: Solve for x
    x = 76,835,278.08/7,344
  6. Step 6: Final answer
    x = 10,462.32

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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.