Home / 20,126.82-27,773.70-11,174.34

Finding the Fourth Proportional to 20,126.82, 27,773.70 and 11,174.34

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Solution

The fourth proportional to 20,126.82, 27,773.70 and 11,174.34 is: 15,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.82 : 27,773.70 = 11,174.34 : x
  2. Step 2: Convert to fraction form
    20,126.82/27,773.70 = 11,174.34/x
  3. Step 3: Cross multiply
    20,126.82x = 27,773.70 × 11,174.34
  4. Step 4: Simplify right side
    20,126.82x = 310,352,766.86
  5. Step 5: Solve for x
    x = 310,352,766.86/20,126.82
  6. Step 6: Final answer
    x = 15,419.86

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1.5x scale

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.