Home / 10,198.85-15,289.97-3,955.64

Finding the Fourth Proportional to 10,198.85, 15,289.97 and 3,955.64

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Solution

The fourth proportional to 10,198.85, 15,289.97 and 3,955.64 is: 5,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.85 : 15,289.97 = 3,955.64 : x
  2. Step 2: Convert to fraction form
    10,198.85/15,289.97 = 3,955.64/x
  3. Step 3: Cross multiply
    10,198.85x = 15,289.97 × 3,955.64
  4. Step 4: Simplify right side
    10,198.85x = 60,481,520.70
  5. Step 5: Solve for x
    x = 60,481,520.70/10,198.85
  6. Step 6: Final answer
    x = 5,930.23

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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.