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Finding the Fourth Proportional to 11,042.12, 15,234.38 and 6,261.54

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Solution

The fourth proportional to 11,042.12, 15,234.38 and 6,261.54 is: 8,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042.12 : 15,234.38 = 6,261.54 : x
  2. Step 2: Convert to fraction form
    11,042.12/15,234.38 = 6,261.54/x
  3. Step 3: Cross multiply
    11,042.12x = 15,234.38 × 6,261.54
  4. Step 4: Simplify right side
    11,042.12x = 95,390,614.79
  5. Step 5: Solve for x
    x = 95,390,614.79/11,042.12
  6. Step 6: Final answer
    x = 8,638.79

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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.