Home / 12,766.28-19,149.46-3,881.70

Finding the Fourth Proportional to 12,766.28, 19,149.46 and 3,881.70

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Solution

The fourth proportional to 12,766.28, 19,149.46 and 3,881.70 is: 5,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.28 : 19,149.46 = 3,881.70 : x
  2. Step 2: Convert to fraction form
    12,766.28/19,149.46 = 3,881.70/x
  3. Step 3: Cross multiply
    12,766.28x = 19,149.46 × 3,881.70
  4. Step 4: Simplify right side
    12,766.28x = 74,332,449.18
  5. Step 5: Solve for x
    x = 74,332,449.18/12,766.28
  6. Step 6: Final answer
    x = 5,822.56

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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.