Home / 18,338.05-25,305.78-10,381.93

Finding the Fourth Proportional to 18,338.05, 25,305.78 and 10,381.93

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Solution

The fourth proportional to 18,338.05, 25,305.78 and 10,381.93 is: 14,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.05 : 25,305.78 = 10,381.93 : x
  2. Step 2: Convert to fraction form
    18,338.05/25,305.78 = 10,381.93/x
  3. Step 3: Cross multiply
    18,338.05x = 25,305.78 × 10,381.93
  4. Step 4: Simplify right side
    18,338.05x = 262,722,836.56
  5. Step 5: Solve for x
    x = 262,722,836.56/18,338.05
  6. Step 6: Final answer
    x = 14,326.65

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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.