Home / 10,512.28-15,768.42-4,275.69

Finding the Fourth Proportional to 10,512.28, 15,768.42 and 4,275.69

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Solution

The fourth proportional to 10,512.28, 15,768.42 and 4,275.69 is: 6,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.28 : 15,768.42 = 4,275.69 : x
  2. Step 2: Convert to fraction form
    10,512.28/15,768.42 = 4,275.69/x
  3. Step 3: Cross multiply
    10,512.28x = 15,768.42 × 4,275.69
  4. Step 4: Simplify right side
    10,512.28x = 67,420,824.60
  5. Step 5: Solve for x
    x = 67,420,824.60/10,512.28
  6. Step 6: Final answer
    x = 6,413.53

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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.