Home / 11,934.92-16,469.28-6,629.28

Finding the Fourth Proportional to 11,934.92, 16,469.28 and 6,629.28

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Solution

The fourth proportional to 11,934.92, 16,469.28 and 6,629.28 is: 9,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,934.92 : 16,469.28 = 6,629.28 : x
  2. Step 2: Convert to fraction form
    11,934.92/16,469.28 = 6,629.28/x
  3. Step 3: Cross multiply
    11,934.92x = 16,469.28 × 6,629.28
  4. Step 4: Simplify right side
    11,934.92x = 109,179,468.52
  5. Step 5: Solve for x
    x = 109,179,468.52/11,934.92
  6. Step 6: Final answer
    x = 9,147.90

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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.