Home / 10,189.68-15,286.71-3,169.56

Finding the Fourth Proportional to 10,189.68, 15,286.71 and 3,169.56

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Solution

The fourth proportional to 10,189.68, 15,286.71 and 3,169.56 is: 4,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.68 : 15,286.71 = 3,169.56 : x
  2. Step 2: Convert to fraction form
    10,189.68/15,286.71 = 3,169.56/x
  3. Step 3: Cross multiply
    10,189.68x = 15,286.71 × 3,169.56
  4. Step 4: Simplify right side
    10,189.68x = 48,452,144.55
  5. Step 5: Solve for x
    x = 48,452,144.55/10,189.68
  6. Step 6: Final answer
    x = 4,755.02

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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.