Home / 8,170.61-12,259.97-3,240.14

Finding the Fourth Proportional to 8,170.61, 12,259.97 and 3,240.14

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Solution

The fourth proportional to 8,170.61, 12,259.97 and 3,240.14 is: 4,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.61 : 12,259.97 = 3,240.14 : x
  2. Step 2: Convert to fraction form
    8,170.61/12,259.97 = 3,240.14/x
  3. Step 3: Cross multiply
    8,170.61x = 12,259.97 × 3,240.14
  4. Step 4: Simplify right side
    8,170.61x = 39,724,057.95
  5. Step 5: Solve for x
    x = 39,724,057.95/8,170.61
  6. Step 6: Final answer
    x = 4,861.82

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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.