Home / 10,319.28-15,485.61-3,744.90

Finding the Fourth Proportional to 10,319.28, 15,485.61 and 3,744.90

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Solution

The fourth proportional to 10,319.28, 15,485.61 and 3,744.90 is: 5,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.28 : 15,485.61 = 3,744.90 : x
  2. Step 2: Convert to fraction form
    10,319.28/15,485.61 = 3,744.90/x
  3. Step 3: Cross multiply
    10,319.28x = 15,485.61 × 3,744.90
  4. Step 4: Simplify right side
    10,319.28x = 57,992,060.89
  5. Step 5: Solve for x
    x = 57,992,060.89/10,319.28
  6. Step 6: Final answer
    x = 5,619.78

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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.