Home / 18,914.48-28,371.72-5,766.74

Finding the Fourth Proportional to 18,914.48, 28,371.72 and 5,766.74

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Solution

The fourth proportional to 18,914.48, 28,371.72 and 5,766.74 is: 8,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.48 : 28,371.72 = 5,766.74 : x
  2. Step 2: Convert to fraction form
    18,914.48/28,371.72 = 5,766.74/x
  3. Step 3: Cross multiply
    18,914.48x = 28,371.72 × 5,766.74
  4. Step 4: Simplify right side
    18,914.48x = 163,612,190.73
  5. Step 5: Solve for x
    x = 163,612,190.73/18,914.48
  6. Step 6: Final answer
    x = 8,650.10

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Double scale
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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.