Home / 12,019.26-18,022.92-4,119.55

Finding the Fourth Proportional to 12,019.26, 18,022.92 and 4,119.55

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Solution

The fourth proportional to 12,019.26, 18,022.92 and 4,119.55 is: 6,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.26 : 18,022.92 = 4,119.55 : x
  2. Step 2: Convert to fraction form
    12,019.26/18,022.92 = 4,119.55/x
  3. Step 3: Cross multiply
    12,019.26x = 18,022.92 × 4,119.55
  4. Step 4: Simplify right side
    12,019.26x = 74,246,320.09
  5. Step 5: Solve for x
    x = 74,246,320.09/12,019.26
  6. Step 6: Final answer
    x = 6,177.28

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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.