Home / 8,115.06-12,174.42-2,568.74

Finding the Fourth Proportional to 8,115.06, 12,174.42 and 2,568.74

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Solution

The fourth proportional to 8,115.06, 12,174.42 and 2,568.74 is: 3,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.06 : 12,174.42 = 2,568.74 : x
  2. Step 2: Convert to fraction form
    8,115.06/12,174.42 = 2,568.74/x
  3. Step 3: Cross multiply
    8,115.06x = 12,174.42 × 2,568.74
  4. Step 4: Simplify right side
    8,115.06x = 31,272,858.76
  5. Step 5: Solve for x
    x = 31,272,858.76/8,115.06
  6. Step 6: Final answer
    x = 3,853.68

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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.