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Finding the Fourth Proportional to 11,342, 17,013.96 and 3,134

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Solution

The fourth proportional to 11,342, 17,013.96 and 3,134 is: 4,701.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342 : 17,013.96 = 3,134 : x
  2. Step 2: Convert to fraction form
    11,342/17,013.96 = 3,134/x
  3. Step 3: Cross multiply
    11,342x = 17,013.96 × 3,134
  4. Step 4: Simplify right side
    11,342x = 53,321,750.64
  5. Step 5: Solve for x
    x = 53,321,750.64/11,342
  6. Step 6: Final answer
    x = 4,701.27

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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.