Home / 10,121.70-15,183.45-2,725.99

Finding the Fourth Proportional to 10,121.70, 15,183.45 and 2,725.99

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Solution

The fourth proportional to 10,121.70, 15,183.45 and 2,725.99 is: 4,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.70 : 15,183.45 = 2,725.99 : x
  2. Step 2: Convert to fraction form
    10,121.70/15,183.45 = 2,725.99/x
  3. Step 3: Cross multiply
    10,121.70x = 15,183.45 × 2,725.99
  4. Step 4: Simplify right side
    10,121.70x = 41,389,932.87
  5. Step 5: Solve for x
    x = 41,389,932.87/10,121.70
  6. Step 6: Final answer
    x = 4,089.23

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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.