Home / 10,195.92-15,294.40-3,180.72

Finding the Fourth Proportional to 10,195.92, 15,294.40 and 3,180.72

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Solution

The fourth proportional to 10,195.92, 15,294.40 and 3,180.72 is: 4,771.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.92 : 15,294.40 = 3,180.72 : x
  2. Step 2: Convert to fraction form
    10,195.92/15,294.40 = 3,180.72/x
  3. Step 3: Cross multiply
    10,195.92x = 15,294.40 × 3,180.72
  4. Step 4: Simplify right side
    10,195.92x = 48,647,203.97
  5. Step 5: Solve for x
    x = 48,647,203.97/10,195.92
  6. Step 6: Final answer
    x = 4,771.24

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1.5x scale

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.