Home / 12,791.27-19,185.69-4,469.75

Finding the Fourth Proportional to 12,791.27, 19,185.69 and 4,469.75

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Solution

The fourth proportional to 12,791.27, 19,185.69 and 4,469.75 is: 6,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.27 : 19,185.69 = 4,469.75 : x
  2. Step 2: Convert to fraction form
    12,791.27/19,185.69 = 4,469.75/x
  3. Step 3: Cross multiply
    12,791.27x = 19,185.69 × 4,469.75
  4. Step 4: Simplify right side
    12,791.27x = 85,755,237.88
  5. Step 5: Solve for x
    x = 85,755,237.88/12,791.27
  6. Step 6: Final answer
    x = 6,704.20

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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.