Home / 10,189.30-15,286.15-3,169.18

Finding the Fourth Proportional to 10,189.30, 15,286.15 and 3,169.18

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Solution

The fourth proportional to 10,189.30, 15,286.15 and 3,169.18 is: 4,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.30 : 15,286.15 = 3,169.18 : x
  2. Step 2: Convert to fraction form
    10,189.30/15,286.15 = 3,169.18/x
  3. Step 3: Cross multiply
    10,189.30x = 15,286.15 × 3,169.18
  4. Step 4: Simplify right side
    10,189.30x = 48,444,560.86
  5. Step 5: Solve for x
    x = 48,444,560.86/10,189.30
  6. Step 6: Final answer
    x = 4,754.45

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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.