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Finding the Fourth Proportional to 7,691.39, 11,537.09 and 5,504.39

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Solution

The fourth proportional to 7,691.39, 11,537.09 and 5,504.39 is: 8,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.39 : 11,537.09 = 5,504.39 : x
  2. Step 2: Convert to fraction form
    7,691.39/11,537.09 = 5,504.39/x
  3. Step 3: Cross multiply
    7,691.39x = 11,537.09 × 5,504.39
  4. Step 4: Simplify right side
    7,691.39x = 63,504,642.83
  5. Step 5: Solve for x
    x = 63,504,642.83/7,691.39
  6. Step 6: Final answer
    x = 8,256.59

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Similar ratio
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1.5x scale

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.