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Finding the Fourth Proportional to 17,691, 26,536.38 and 4,543.38

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Solution

The fourth proportional to 17,691, 26,536.38 and 4,543.38 is: 6,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691 : 26,536.38 = 4,543.38 : x
  2. Step 2: Convert to fraction form
    17,691/26,536.38 = 4,543.38/x
  3. Step 3: Cross multiply
    17,691x = 26,536.38 × 4,543.38
  4. Step 4: Simplify right side
    17,691x = 120,564,858.16
  5. Step 5: Solve for x
    x = 120,564,858.16/17,691
  6. Step 6: Final answer
    x = 6,815.04

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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.