Home / 8,131.78-12,194.21-2,583.64

Finding the Fourth Proportional to 8,131.78, 12,194.21 and 2,583.64

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Solution

The fourth proportional to 8,131.78, 12,194.21 and 2,583.64 is: 3,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.78 : 12,194.21 = 2,583.64 : x
  2. Step 2: Convert to fraction form
    8,131.78/12,194.21 = 2,583.64/x
  3. Step 3: Cross multiply
    8,131.78x = 12,194.21 × 2,583.64
  4. Step 4: Simplify right side
    8,131.78x = 31,505,424.70
  5. Step 5: Solve for x
    x = 31,505,424.70/8,131.78
  6. Step 6: Final answer
    x = 3,874.36

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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.