Home / 8,371.88-12,550.62-3,181.48

Finding the Fourth Proportional to 8,371.88, 12,550.62 and 3,181.48

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Solution

The fourth proportional to 8,371.88, 12,550.62 and 3,181.48 is: 4,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.88 : 12,550.62 = 3,181.48 : x
  2. Step 2: Convert to fraction form
    8,371.88/12,550.62 = 3,181.48/x
  3. Step 3: Cross multiply
    8,371.88x = 12,550.62 × 3,181.48
  4. Step 4: Simplify right side
    8,371.88x = 39,929,546.52
  5. Step 5: Solve for x
    x = 39,929,546.52/8,371.88
  6. Step 6: Final answer
    x = 4,769.48

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1.5x scale

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.