Home / 8,170.91-12,257.73-3,240.61

Finding the Fourth Proportional to 8,170.91, 12,257.73 and 3,240.61

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Solution

The fourth proportional to 8,170.91, 12,257.73 and 3,240.61 is: 4,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.91 : 12,257.73 = 3,240.61 : x
  2. Step 2: Convert to fraction form
    8,170.91/12,257.73 = 3,240.61/x
  3. Step 3: Cross multiply
    8,170.91x = 12,257.73 × 3,240.61
  4. Step 4: Simplify right side
    8,170.91x = 39,722,491.77
  5. Step 5: Solve for x
    x = 39,722,491.77/8,170.91
  6. Step 6: Final answer
    x = 4,861.45

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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.