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Finding the Fourth Proportional to 9,249.18, 12,849.41 and 9,162.71

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Solution

The fourth proportional to 9,249.18, 12,849.41 and 9,162.71 is: 12,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.18 : 12,849.41 = 9,162.71 : x
  2. Step 2: Convert to fraction form
    9,249.18/12,849.41 = 9,162.71/x
  3. Step 3: Cross multiply
    9,249.18x = 12,849.41 × 9,162.71
  4. Step 4: Simplify right side
    9,249.18x = 117,735,472.53
  5. Step 5: Solve for x
    x = 117,735,472.53/9,249.18
  6. Step 6: Final answer
    x = 12,729.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.