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Finding the Fourth Proportional to 8,793.78, 13,190.67 and 2,220.48

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Solution

The fourth proportional to 8,793.78, 13,190.67 and 2,220.48 is: 3,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.78 : 13,190.67 = 2,220.48 : x
  2. Step 2: Convert to fraction form
    8,793.78/13,190.67 = 2,220.48/x
  3. Step 3: Cross multiply
    8,793.78x = 13,190.67 × 2,220.48
  4. Step 4: Simplify right side
    8,793.78x = 29,289,618.92
  5. Step 5: Solve for x
    x = 29,289,618.92/8,793.78
  6. Step 6: Final answer
    x = 3,330.72

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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.