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Finding the Fourth Proportional to 8,944.20, 13,390.70 and 8,022.60

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Solution

The fourth proportional to 8,944.20, 13,390.70 and 8,022.60 is: 12,010.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.20 : 13,390.70 = 8,022.60 : x
  2. Step 2: Convert to fraction form
    8,944.20/13,390.70 = 8,022.60/x
  3. Step 3: Cross multiply
    8,944.20x = 13,390.70 × 8,022.60
  4. Step 4: Simplify right side
    8,944.20x = 107,428,229.82
  5. Step 5: Solve for x
    x = 107,428,229.82/8,944.20
  6. Step 6: Final answer
    x = 12,010.94

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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.