Home / 11,791.98-16,174.18-11,157.75

Finding the Fourth Proportional to 11,791.98, 16,174.18 and 11,157.75

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Solution

The fourth proportional to 11,791.98, 16,174.18 and 11,157.75 is: 15,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.98 : 16,174.18 = 11,157.75 : x
  2. Step 2: Convert to fraction form
    11,791.98/16,174.18 = 11,157.75/x
  3. Step 3: Cross multiply
    11,791.98x = 16,174.18 × 11,157.75
  4. Step 4: Simplify right side
    11,791.98x = 180,467,470.84
  5. Step 5: Solve for x
    x = 180,467,470.84/11,791.98
  6. Step 6: Final answer
    x = 15,304.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.