Home / 10,189.55-15,286.53-3,169.43

Finding the Fourth Proportional to 10,189.55, 15,286.53 and 3,169.43

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Solution

The fourth proportional to 10,189.55, 15,286.53 and 3,169.43 is: 4,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.55 : 15,286.53 = 3,169.43 : x
  2. Step 2: Convert to fraction form
    10,189.55/15,286.53 = 3,169.43/x
  3. Step 3: Cross multiply
    10,189.55x = 15,286.53 × 3,169.43
  4. Step 4: Simplify right side
    10,189.55x = 48,449,570.93
  5. Step 5: Solve for x
    x = 48,449,570.93/10,189.55
  6. Step 6: Final answer
    x = 4,754.83

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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.