Home / 15,961.83-22,027.11-8,791.60

Finding the Fourth Proportional to 15,961.83, 22,027.11 and 8,791.60

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Solution

The fourth proportional to 15,961.83, 22,027.11 and 8,791.60 is: 12,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.83 : 22,027.11 = 8,791.60 : x
  2. Step 2: Convert to fraction form
    15,961.83/22,027.11 = 8,791.60/x
  3. Step 3: Cross multiply
    15,961.83x = 22,027.11 × 8,791.60
  4. Step 4: Simplify right side
    15,961.83x = 193,653,540.28
  5. Step 5: Solve for x
    x = 193,653,540.28/15,961.83
  6. Step 6: Final answer
    x = 12,132.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.