Home / 18,909.05-28,360.13-9,546.86

Finding the Fourth Proportional to 18,909.05, 28,360.13 and 9,546.86

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Solution

The fourth proportional to 18,909.05, 28,360.13 and 9,546.86 is: 14,318.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.05 : 28,360.13 = 9,546.86 : x
  2. Step 2: Convert to fraction form
    18,909.05/28,360.13 = 9,546.86/x
  3. Step 3: Cross multiply
    18,909.05x = 28,360.13 × 9,546.86
  4. Step 4: Simplify right side
    18,909.05x = 270,750,213.86
  5. Step 5: Solve for x
    x = 270,750,213.86/18,909.05
  6. Step 6: Final answer
    x = 14,318.56

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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.