Home / 15,961.70-22,027.18-8,791.44

Finding the Fourth Proportional to 15,961.70, 22,027.18 and 8,791.44

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Solution

The fourth proportional to 15,961.70, 22,027.18 and 8,791.44 is: 12,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.70 : 22,027.18 = 8,791.44 : x
  2. Step 2: Convert to fraction form
    15,961.70/22,027.18 = 8,791.44/x
  3. Step 3: Cross multiply
    15,961.70x = 22,027.18 × 8,791.44
  4. Step 4: Simplify right side
    15,961.70x = 193,650,631.34
  5. Step 5: Solve for x
    x = 193,650,631.34/15,961.70
  6. Step 6: Final answer
    x = 12,132.21

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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.