Home / 10,616.28-15,919.56-3,221.52

Finding the Fourth Proportional to 10,616.28, 15,919.56 and 3,221.52

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Solution

The fourth proportional to 10,616.28, 15,919.56 and 3,221.52 is: 4,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.28 : 15,919.56 = 3,221.52 : x
  2. Step 2: Convert to fraction form
    10,616.28/15,919.56 = 3,221.52/x
  3. Step 3: Cross multiply
    10,616.28x = 15,919.56 × 3,221.52
  4. Step 4: Simplify right side
    10,616.28x = 51,285,180.93
  5. Step 5: Solve for x
    x = 51,285,180.93/10,616.28
  6. Step 6: Final answer
    x = 4,830.81

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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.