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Finding the Fourth Proportional to 8,169.05, 12,268.13 and 6,691.07

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Solution

The fourth proportional to 8,169.05, 12,268.13 and 6,691.07 is: 10,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.05 : 12,268.13 = 6,691.07 : x
  2. Step 2: Convert to fraction form
    8,169.05/12,268.13 = 6,691.07/x
  3. Step 3: Cross multiply
    8,169.05x = 12,268.13 × 6,691.07
  4. Step 4: Simplify right side
    8,169.05x = 82,086,913.81
  5. Step 5: Solve for x
    x = 82,086,913.81/8,169.05
  6. Step 6: Final answer
    x = 10,048.52

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1.5x scale

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.