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Finding the Fourth Proportional to 8,169.85, 12,254.78 and 2,326.51

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Solution

The fourth proportional to 8,169.85, 12,254.78 and 2,326.51 is: 3,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.85 : 12,254.78 = 2,326.51 : x
  2. Step 2: Convert to fraction form
    8,169.85/12,254.78 = 2,326.51/x
  3. Step 3: Cross multiply
    8,169.85x = 12,254.78 × 2,326.51
  4. Step 4: Simplify right side
    8,169.85x = 28,510,868.22
  5. Step 5: Solve for x
    x = 28,510,868.22/8,169.85
  6. Step 6: Final answer
    x = 3,489.77

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Similar ratio
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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.