Home / 11,686.05-17,531.82-3,788.55

Finding the Fourth Proportional to 11,686.05, 17,531.82 and 3,788.55

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Solution

The fourth proportional to 11,686.05, 17,531.82 and 3,788.55 is: 5,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.05 : 17,531.82 = 3,788.55 : x
  2. Step 2: Convert to fraction form
    11,686.05/17,531.82 = 3,788.55/x
  3. Step 3: Cross multiply
    11,686.05x = 17,531.82 × 3,788.55
  4. Step 4: Simplify right side
    11,686.05x = 66,420,176.66
  5. Step 5: Solve for x
    x = 66,420,176.66/11,686.05
  6. Step 6: Final answer
    x = 5,683.71

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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.