Home / 10,121.88-15,183.74-2,726.38

Finding the Fourth Proportional to 10,121.88, 15,183.74 and 2,726.38

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Solution

The fourth proportional to 10,121.88, 15,183.74 and 2,726.38 is: 4,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.88 : 15,183.74 = 2,726.38 : x
  2. Step 2: Convert to fraction form
    10,121.88/15,183.74 = 2,726.38/x
  3. Step 3: Cross multiply
    10,121.88x = 15,183.74 × 2,726.38
  4. Step 4: Simplify right side
    10,121.88x = 41,396,645.06
  5. Step 5: Solve for x
    x = 41,396,645.06/10,121.88
  6. Step 6: Final answer
    x = 4,089.82

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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.