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Finding the Fourth Proportional to 18,247.34, 27,352.38 and 8,393.78

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Solution

The fourth proportional to 18,247.34, 27,352.38 and 8,393.78 is: 12,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.34 : 27,352.38 = 8,393.78 : x
  2. Step 2: Convert to fraction form
    18,247.34/27,352.38 = 8,393.78/x
  3. Step 3: Cross multiply
    18,247.34x = 27,352.38 × 8,393.78
  4. Step 4: Simplify right side
    18,247.34x = 229,589,860.20
  5. Step 5: Solve for x
    x = 229,589,860.20/18,247.34
  6. Step 6: Final answer
    x = 12,582.10

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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.