Home / 10,380.92-15,570-3,806.24

Finding the Fourth Proportional to 10,380.92, 15,570 and 3,806.24

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Solution

The fourth proportional to 10,380.92, 15,570 and 3,806.24 is: 5,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.92 : 15,570 = 3,806.24 : x
  2. Step 2: Convert to fraction form
    10,380.92/15,570 = 3,806.24/x
  3. Step 3: Cross multiply
    10,380.92x = 15,570 × 3,806.24
  4. Step 4: Simplify right side
    10,380.92x = 59,263,078.95
  5. Step 5: Solve for x
    x = 59,263,078.95/10,380.92
  6. Step 6: Final answer
    x = 5,708.85

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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.