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Finding the Fourth Proportional to 18,337, 25,311.62 and 10,885

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Solution

The fourth proportional to 18,337, 25,311.62 and 10,885 is: 15,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337 : 25,311.62 = 10,885 : x
  2. Step 2: Convert to fraction form
    18,337/25,311.62 = 10,885/x
  3. Step 3: Cross multiply
    18,337x = 25,311.62 × 10,885
  4. Step 4: Simplify right side
    18,337x = 275,516,983.70
  5. Step 5: Solve for x
    x = 275,516,983.70/18,337
  6. Step 6: Final answer
    x = 15,025.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.