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Finding the Fourth Proportional to 18,338, 25,306.38 and 9,954.44

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Solution

The fourth proportional to 18,338, 25,306.38 and 9,954.44 is: 13,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338 : 25,306.38 = 9,954.44 : x
  2. Step 2: Convert to fraction form
    18,338/25,306.38 = 9,954.44/x
  3. Step 3: Cross multiply
    18,338x = 25,306.38 × 9,954.44
  4. Step 4: Simplify right side
    18,338x = 251,910,841.33
  5. Step 5: Solve for x
    x = 251,910,841.33/18,338
  6. Step 6: Final answer
    x = 13,737.09

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1.5x scale

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.