Home / 12,019.82-18,028.23-3,255.38

Finding the Fourth Proportional to 12,019.82, 18,028.23 and 3,255.38

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Solution

The fourth proportional to 12,019.82, 18,028.23 and 3,255.38 is: 4,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.82 : 18,028.23 = 3,255.38 : x
  2. Step 2: Convert to fraction form
    12,019.82/18,028.23 = 3,255.38/x
  3. Step 3: Cross multiply
    12,019.82x = 18,028.23 × 3,255.38
  4. Step 4: Simplify right side
    12,019.82x = 58,688,739.38
  5. Step 5: Solve for x
    x = 58,688,739.38/12,019.82
  6. Step 6: Final answer
    x = 4,882.66

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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.