Home / 12,145.14-18,217.94-3,825.43

Finding the Fourth Proportional to 12,145.14, 18,217.94 and 3,825.43

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Solution

The fourth proportional to 12,145.14, 18,217.94 and 3,825.43 is: 5,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.14 : 18,217.94 = 3,825.43 : x
  2. Step 2: Convert to fraction form
    12,145.14/18,217.94 = 3,825.43/x
  3. Step 3: Cross multiply
    12,145.14x = 18,217.94 × 3,825.43
  4. Step 4: Simplify right side
    12,145.14x = 69,691,454.21
  5. Step 5: Solve for x
    x = 69,691,454.21/12,145.14
  6. Step 6: Final answer
    x = 5,738.22

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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.