Home / 18,286.41-27,429.62-5,139.23

Finding the Fourth Proportional to 18,286.41, 27,429.62 and 5,139.23

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Solution

The fourth proportional to 18,286.41, 27,429.62 and 5,139.23 is: 7,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.41 : 27,429.62 = 5,139.23 : x
  2. Step 2: Convert to fraction form
    18,286.41/27,429.62 = 5,139.23/x
  3. Step 3: Cross multiply
    18,286.41x = 27,429.62 × 5,139.23
  4. Step 4: Simplify right side
    18,286.41x = 140,967,125.99
  5. Step 5: Solve for x
    x = 140,967,125.99/18,286.41
  6. Step 6: Final answer
    x = 7,708.85

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Similar ratio
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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.