Home / 18,338.28-25,306.72-9,954.78

Finding the Fourth Proportional to 18,338.28, 25,306.72 and 9,954.78

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Solution

The fourth proportional to 18,338.28, 25,306.72 and 9,954.78 is: 13,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.28 : 25,306.72 = 9,954.78 : x
  2. Step 2: Convert to fraction form
    18,338.28/25,306.72 = 9,954.78/x
  3. Step 3: Cross multiply
    18,338.28x = 25,306.72 × 9,954.78
  4. Step 4: Simplify right side
    18,338.28x = 251,922,830.12
  5. Step 5: Solve for x
    x = 251,922,830.12/18,338.28
  6. Step 6: Final answer
    x = 13,737.54

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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.