Home / 12,198.30-18,287.70-4,801.38

Finding the Fourth Proportional to 12,198.30, 18,287.70 and 4,801.38

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Solution

The fourth proportional to 12,198.30, 18,287.70 and 4,801.38 is: 7,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.30 : 18,287.70 = 4,801.38 : x
  2. Step 2: Convert to fraction form
    12,198.30/18,287.70 = 4,801.38/x
  3. Step 3: Cross multiply
    12,198.30x = 18,287.70 × 4,801.38
  4. Step 4: Simplify right side
    12,198.30x = 87,806,197.03
  5. Step 5: Solve for x
    x = 87,806,197.03/12,198.30
  6. Step 6: Final answer
    x = 7,198.23

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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.