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Finding the Fourth Proportional to 13,844.60, 20,769.60 and 5,523.20

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Solution

The fourth proportional to 13,844.60, 20,769.60 and 5,523.20 is: 8,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.60 : 20,769.60 = 5,523.20 : x
  2. Step 2: Convert to fraction form
    13,844.60/20,769.60 = 5,523.20/x
  3. Step 3: Cross multiply
    13,844.60x = 20,769.60 × 5,523.20
  4. Step 4: Simplify right side
    13,844.60x = 114,714,654.72
  5. Step 5: Solve for x
    x = 114,714,654.72/13,844.60
  6. Step 6: Final answer
    x = 8,285.88

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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.