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Finding the Fourth Proportional to 18,605.10, 27,908.46 and 9,249.60

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Solution

The fourth proportional to 18,605.10, 27,908.46 and 9,249.60 is: 13,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.10 : 27,908.46 = 9,249.60 : x
  2. Step 2: Convert to fraction form
    18,605.10/27,908.46 = 9,249.60/x
  3. Step 3: Cross multiply
    18,605.10x = 27,908.46 × 9,249.60
  4. Step 4: Simplify right side
    18,605.10x = 258,142,091.62
  5. Step 5: Solve for x
    x = 258,142,091.62/18,605.10
  6. Step 6: Final answer
    x = 13,874.80

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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.