Home / 8,630.62-12,945.96-2,791.33

Finding the Fourth Proportional to 8,630.62, 12,945.96 and 2,791.33

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Solution

The fourth proportional to 8,630.62, 12,945.96 and 2,791.33 is: 4,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.62 : 12,945.96 = 2,791.33 : x
  2. Step 2: Convert to fraction form
    8,630.62/12,945.96 = 2,791.33/x
  3. Step 3: Cross multiply
    8,630.62x = 12,945.96 × 2,791.33
  4. Step 4: Simplify right side
    8,630.62x = 36,136,414.16
  5. Step 5: Solve for x
    x = 36,136,414.16/8,630.62
  6. Step 6: Final answer
    x = 4,187.00

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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.