Home / 8,371.45-12,552.96-3,439.75

Finding the Fourth Proportional to 8,371.45, 12,552.96 and 3,439.75

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Solution

The fourth proportional to 8,371.45, 12,552.96 and 3,439.75 is: 5,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.45 : 12,552.96 = 3,439.75 : x
  2. Step 2: Convert to fraction form
    8,371.45/12,552.96 = 3,439.75/x
  3. Step 3: Cross multiply
    8,371.45x = 12,552.96 × 3,439.75
  4. Step 4: Simplify right side
    8,371.45x = 43,179,044.16
  5. Step 5: Solve for x
    x = 43,179,044.16/8,371.45
  6. Step 6: Final answer
    x = 5,157.89

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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.