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Finding the Fourth Proportional to 12,198.88, 16,834.46 and 6,609.88

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Solution

The fourth proportional to 12,198.88, 16,834.46 and 6,609.88 is: 9,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.88 : 16,834.46 = 6,609.88 : x
  2. Step 2: Convert to fraction form
    12,198.88/16,834.46 = 6,609.88/x
  3. Step 3: Cross multiply
    12,198.88x = 16,834.46 × 6,609.88
  4. Step 4: Simplify right side
    12,198.88x = 111,273,685.33
  5. Step 5: Solve for x
    x = 111,273,685.33/12,198.88
  6. Step 6: Final answer
    x = 9,121.63

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