Home / 8,169.06-12,255.10-2,904.78

Finding the Fourth Proportional to 8,169.06, 12,255.10 and 2,904.78

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Solution

The fourth proportional to 8,169.06, 12,255.10 and 2,904.78 is: 4,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.06 : 12,255.10 = 2,904.78 : x
  2. Step 2: Convert to fraction form
    8,169.06/12,255.10 = 2,904.78/x
  3. Step 3: Cross multiply
    8,169.06x = 12,255.10 × 2,904.78
  4. Step 4: Simplify right side
    8,169.06x = 35,598,369.38
  5. Step 5: Solve for x
    x = 35,598,369.38/8,169.06
  6. Step 6: Final answer
    x = 4,357.71

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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.