Home / 8,791.21-13,169.15-4,104.75

Finding the Fourth Proportional to 8,791.21, 13,169.15 and 4,104.75

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Solution

The fourth proportional to 8,791.21, 13,169.15 and 4,104.75 is: 6,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.21 : 13,169.15 = 4,104.75 : x
  2. Step 2: Convert to fraction form
    8,791.21/13,169.15 = 4,104.75/x
  3. Step 3: Cross multiply
    8,791.21x = 13,169.15 × 4,104.75
  4. Step 4: Simplify right side
    8,791.21x = 54,056,112.72
  5. Step 5: Solve for x
    x = 54,056,112.72/8,791.21
  6. Step 6: Final answer
    x = 6,148.88

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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.