Home / 10,146.43-15,212.76-3,571.75

Finding the Fourth Proportional to 10,146.43, 15,212.76 and 3,571.75

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Solution

The fourth proportional to 10,146.43, 15,212.76 and 3,571.75 is: 5,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.43 : 15,212.76 = 3,571.75 : x
  2. Step 2: Convert to fraction form
    10,146.43/15,212.76 = 3,571.75/x
  3. Step 3: Cross multiply
    10,146.43x = 15,212.76 × 3,571.75
  4. Step 4: Simplify right side
    10,146.43x = 54,336,175.53
  5. Step 5: Solve for x
    x = 54,336,175.53/10,146.43
  6. Step 6: Final answer
    x = 5,355.20

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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.