Home / 10,121.88-15,183.27-3,101.38

Finding the Fourth Proportional to 10,121.88, 15,183.27 and 3,101.38

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Solution

The fourth proportional to 10,121.88, 15,183.27 and 3,101.38 is: 4,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.88 : 15,183.27 = 3,101.38 : x
  2. Step 2: Convert to fraction form
    10,121.88/15,183.27 = 3,101.38/x
  3. Step 3: Cross multiply
    10,121.88x = 15,183.27 × 3,101.38
  4. Step 4: Simplify right side
    10,121.88x = 47,089,089.91
  5. Step 5: Solve for x
    x = 47,089,089.91/10,121.88
  6. Step 6: Final answer
    x = 4,652.21

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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.