Home / 8,371.32-12,557.10-3,989.24

Finding the Fourth Proportional to 8,371.32, 12,557.10 and 3,989.24

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Solution

The fourth proportional to 8,371.32, 12,557.10 and 3,989.24 is: 5,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.32 : 12,557.10 = 3,989.24 : x
  2. Step 2: Convert to fraction form
    8,371.32/12,557.10 = 3,989.24/x
  3. Step 3: Cross multiply
    8,371.32x = 12,557.10 × 3,989.24
  4. Step 4: Simplify right side
    8,371.32x = 50,093,285.60
  5. Step 5: Solve for x
    x = 50,093,285.60/8,371.32
  6. Step 6: Final answer
    x = 5,983.92

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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.