Home / 18,144.33-27,219.68-8,284.61

Finding the Fourth Proportional to 18,144.33, 27,219.68 and 8,284.61

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Solution

The fourth proportional to 18,144.33, 27,219.68 and 8,284.61 is: 12,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.33 : 27,219.68 = 8,284.61 : x
  2. Step 2: Convert to fraction form
    18,144.33/27,219.68 = 8,284.61/x
  3. Step 3: Cross multiply
    18,144.33x = 27,219.68 × 8,284.61
  4. Step 4: Simplify right side
    18,144.33x = 225,504,317.74
  5. Step 5: Solve for x
    x = 225,504,317.74/18,144.33
  6. Step 6: Final answer
    x = 12,428.36

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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.