Home / 11,961.16-17,925.28-6,105.48

Finding the Fourth Proportional to 11,961.16, 17,925.28 and 6,105.48

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Solution

The fourth proportional to 11,961.16, 17,925.28 and 6,105.48 is: 9,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.16 : 17,925.28 = 6,105.48 : x
  2. Step 2: Convert to fraction form
    11,961.16/17,925.28 = 6,105.48/x
  3. Step 3: Cross multiply
    11,961.16x = 17,925.28 × 6,105.48
  4. Step 4: Simplify right side
    11,961.16x = 109,442,438.53
  5. Step 5: Solve for x
    x = 109,442,438.53/11,961.16
  6. Step 6: Final answer
    x = 9,149.82

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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.