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Finding the Fourth Proportional to 18,080.20, 27,117.80 and 5,608.80

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Solution

The fourth proportional to 18,080.20, 27,117.80 and 5,608.80 is: 8,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.20 : 27,117.80 = 5,608.80 : x
  2. Step 2: Convert to fraction form
    18,080.20/27,117.80 = 5,608.80/x
  3. Step 3: Cross multiply
    18,080.20x = 27,117.80 × 5,608.80
  4. Step 4: Simplify right side
    18,080.20x = 152,098,316.64
  5. Step 5: Solve for x
    x = 152,098,316.64/18,080.20
  6. Step 6: Final answer
    x = 8,412.42

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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.