Home / 8,151.06-12,220.61-2,601.20

Finding the Fourth Proportional to 8,151.06, 12,220.61 and 2,601.20

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Solution

The fourth proportional to 8,151.06, 12,220.61 and 2,601.20 is: 3,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.06 : 12,220.61 = 2,601.20 : x
  2. Step 2: Convert to fraction form
    8,151.06/12,220.61 = 2,601.20/x
  3. Step 3: Cross multiply
    8,151.06x = 12,220.61 × 2,601.20
  4. Step 4: Simplify right side
    8,151.06x = 31,788,286.80
  5. Step 5: Solve for x
    x = 31,788,286.80/8,151.06
  6. Step 6: Final answer
    x = 3,899.90

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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.