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Finding the Fourth Proportional to 18,115.56, 27,169.56 and 9,349.56

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Solution

The fourth proportional to 18,115.56, 27,169.56 and 9,349.56 is: 14,022.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.56 : 27,169.56 = 9,349.56 : x
  2. Step 2: Convert to fraction form
    18,115.56/27,169.56 = 9,349.56/x
  3. Step 3: Cross multiply
    18,115.56x = 27,169.56 × 9,349.56
  4. Step 4: Simplify right side
    18,115.56x = 254,023,431.39
  5. Step 5: Solve for x
    x = 254,023,431.39/18,115.56
  6. Step 6: Final answer
    x = 14,022.39

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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.