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Finding the Fourth Proportional to 18,180.60, 27,270.80 and 5,032.88

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Solution

The fourth proportional to 18,180.60, 27,270.80 and 5,032.88 is: 7,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.60 : 27,270.80 = 5,032.88 : x
  2. Step 2: Convert to fraction form
    18,180.60/27,270.80 = 5,032.88/x
  3. Step 3: Cross multiply
    18,180.60x = 27,270.80 × 5,032.88
  4. Step 4: Simplify right side
    18,180.60x = 137,250,663.90
  5. Step 5: Solve for x
    x = 137,250,663.90/18,180.60
  6. Step 6: Final answer
    x = 7,549.29

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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.