Home / 10,382.25-15,571.83-3,806.90

Finding the Fourth Proportional to 10,382.25, 15,571.83 and 3,806.90

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Solution

The fourth proportional to 10,382.25, 15,571.83 and 3,806.90 is: 5,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.25 : 15,571.83 = 3,806.90 : x
  2. Step 2: Convert to fraction form
    10,382.25/15,571.83 = 3,806.90/x
  3. Step 3: Cross multiply
    10,382.25x = 15,571.83 × 3,806.90
  4. Step 4: Simplify right side
    10,382.25x = 59,280,321.77
  5. Step 5: Solve for x
    x = 59,280,321.77/10,382.25
  6. Step 6: Final answer
    x = 5,709.78

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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.