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Finding the Fourth Proportional to 18,000.20, 27,010.02 and 8,146.55

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Solution

The fourth proportional to 18,000.20, 27,010.02 and 8,146.55 is: 12,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.20 : 27,010.02 = 8,146.55 : x
  2. Step 2: Convert to fraction form
    18,000.20/27,010.02 = 8,146.55/x
  3. Step 3: Cross multiply
    18,000.20x = 27,010.02 × 8,146.55
  4. Step 4: Simplify right side
    18,000.20x = 220,038,478.43
  5. Step 5: Solve for x
    x = 220,038,478.43/18,000.20
  6. Step 6: Final answer
    x = 12,224.22

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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.