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Finding the Fourth Proportional to 6,661.82, 9,992.73 and 3,375.86

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Solution

The fourth proportional to 6,661.82, 9,992.73 and 3,375.86 is: 5,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.82 : 9,992.73 = 3,375.86 : x
  2. Step 2: Convert to fraction form
    6,661.82/9,992.73 = 3,375.86/x
  3. Step 3: Cross multiply
    6,661.82x = 9,992.73 × 3,375.86
  4. Step 4: Simplify right side
    6,661.82x = 33,734,007.53
  5. Step 5: Solve for x
    x = 33,734,007.53/6,661.82
  6. Step 6: Final answer
    x = 5,063.78

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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.