Home / 12,083.16-18,122.58-3,198.54

Finding the Fourth Proportional to 12,083.16, 18,122.58 and 3,198.54

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Solution

The fourth proportional to 12,083.16, 18,122.58 and 3,198.54 is: 4,797.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.16 : 18,122.58 = 3,198.54 : x
  2. Step 2: Convert to fraction form
    12,083.16/18,122.58 = 3,198.54/x
  3. Step 3: Cross multiply
    12,083.16x = 18,122.58 × 3,198.54
  4. Step 4: Simplify right side
    12,083.16x = 57,965,797.03
  5. Step 5: Solve for x
    x = 57,965,797.03/12,083.16
  6. Step 6: Final answer
    x = 4,797.24

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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.