Home / 12,190.52-18,286.41-3,426.12

Finding the Fourth Proportional to 12,190.52, 18,286.41 and 3,426.12

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Solution

The fourth proportional to 12,190.52, 18,286.41 and 3,426.12 is: 5,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.52 : 18,286.41 = 3,426.12 : x
  2. Step 2: Convert to fraction form
    12,190.52/18,286.41 = 3,426.12/x
  3. Step 3: Cross multiply
    12,190.52x = 18,286.41 × 3,426.12
  4. Step 4: Simplify right side
    12,190.52x = 62,651,435.03
  5. Step 5: Solve for x
    x = 62,651,435.03/12,190.52
  6. Step 6: Final answer
    x = 5,139.36

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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.