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Finding the Fourth Proportional to 18,245.67, 27,359.16 and 8,376.38

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Solution

The fourth proportional to 18,245.67, 27,359.16 and 8,376.38 is: 12,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.67 : 27,359.16 = 8,376.38 : x
  2. Step 2: Convert to fraction form
    18,245.67/27,359.16 = 8,376.38/x
  3. Step 3: Cross multiply
    18,245.67x = 27,359.16 × 8,376.38
  4. Step 4: Simplify right side
    18,245.67x = 229,170,583.85
  5. Step 5: Solve for x
    x = 229,170,583.85/18,245.67
  6. Step 6: Final answer
    x = 12,560.27

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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.