Home / 18,279.20-27,396.75-8,404.94

Finding the Fourth Proportional to 18,279.20, 27,396.75 and 8,404.94

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Solution

The fourth proportional to 18,279.20, 27,396.75 and 8,404.94 is: 12,597.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.20 : 27,396.75 = 8,404.94 : x
  2. Step 2: Convert to fraction form
    18,279.20/27,396.75 = 8,404.94/x
  3. Step 3: Cross multiply
    18,279.20x = 27,396.75 × 8,404.94
  4. Step 4: Simplify right side
    18,279.20x = 230,268,039.95
  5. Step 5: Solve for x
    x = 230,268,039.95/18,279.20
  6. Step 6: Final answer
    x = 12,597.27

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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.