Home / 17,691.56-26,537.36-5,211.74

Finding the Fourth Proportional to 17,691.56, 26,537.36 and 5,211.74

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Solution

The fourth proportional to 17,691.56, 26,537.36 and 5,211.74 is: 7,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.56 : 26,537.36 = 5,211.74 : x
  2. Step 2: Convert to fraction form
    17,691.56/26,537.36 = 5,211.74/x
  3. Step 3: Cross multiply
    17,691.56x = 26,537.36 × 5,211.74
  4. Step 4: Simplify right side
    17,691.56x = 138,305,820.61
  5. Step 5: Solve for x
    x = 138,305,820.61/17,691.56
  6. Step 6: Final answer
    x = 7,817.62

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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.