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Finding the Fourth Proportional to 11,141.92, 15,375.78 and 6,173.92

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Solution

The fourth proportional to 11,141.92, 15,375.78 and 6,173.92 is: 8,519.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.92 : 15,375.78 = 6,173.92 : x
  2. Step 2: Convert to fraction form
    11,141.92/15,375.78 = 6,173.92/x
  3. Step 3: Cross multiply
    11,141.92x = 15,375.78 × 6,173.92
  4. Step 4: Simplify right side
    11,141.92x = 94,928,835.66
  5. Step 5: Solve for x
    x = 94,928,835.66/11,141.92
  6. Step 6: Final answer
    x = 8,519.97

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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.