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Finding the Fourth Proportional to 8,920.97, 13,380.78 and 3,373.82

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Solution

The fourth proportional to 8,920.97, 13,380.78 and 3,373.82 is: 5,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.97 : 13,380.78 = 3,373.82 : x
  2. Step 2: Convert to fraction form
    8,920.97/13,380.78 = 3,373.82/x
  3. Step 3: Cross multiply
    8,920.97x = 13,380.78 × 3,373.82
  4. Step 4: Simplify right side
    8,920.97x = 45,144,343.18
  5. Step 5: Solve for x
    x = 45,144,343.18/8,920.97
  6. Step 6: Final answer
    x = 5,060.47

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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.