Home / 8,172.75-12,257.01-3,490.41

Finding the Fourth Proportional to 8,172.75, 12,257.01 and 3,490.41

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Solution

The fourth proportional to 8,172.75, 12,257.01 and 3,490.41 is: 5,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.75 : 12,257.01 = 3,490.41 : x
  2. Step 2: Convert to fraction form
    8,172.75/12,257.01 = 3,490.41/x
  3. Step 3: Cross multiply
    8,172.75x = 12,257.01 × 3,490.41
  4. Step 4: Simplify right side
    8,172.75x = 42,781,990.27
  5. Step 5: Solve for x
    x = 42,781,990.27/8,172.75
  6. Step 6: Final answer
    x = 5,234.71

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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.