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Finding the Fourth Proportional to 12,105.66, 16,704.87 and 6,799.44

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Solution

The fourth proportional to 12,105.66, 16,704.87 and 6,799.44 is: 9,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.66 : 16,704.87 = 6,799.44 : x
  2. Step 2: Convert to fraction form
    12,105.66/16,704.87 = 6,799.44/x
  3. Step 3: Cross multiply
    12,105.66x = 16,704.87 × 6,799.44
  4. Step 4: Simplify right side
    12,105.66x = 113,583,761.27
  5. Step 5: Solve for x
    x = 113,583,761.27/12,105.66
  6. Step 6: Final answer
    x = 9,382.70

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1.5x scale

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.