Home / 10,105.60-15,151.20-3,863.20

Finding the Fourth Proportional to 10,105.60, 15,151.20 and 3,863.20

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Solution

The fourth proportional to 10,105.60, 15,151.20 and 3,863.20 is: 5,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.60 : 15,151.20 = 3,863.20 : x
  2. Step 2: Convert to fraction form
    10,105.60/15,151.20 = 3,863.20/x
  3. Step 3: Cross multiply
    10,105.60x = 15,151.20 × 3,863.20
  4. Step 4: Simplify right side
    10,105.60x = 58,532,115.84
  5. Step 5: Solve for x
    x = 58,532,115.84/10,105.60
  6. Step 6: Final answer
    x = 5,792.05

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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.