Home / 11,988.06-17,986.41-4,198.02

Finding the Fourth Proportional to 11,988.06, 17,986.41 and 4,198.02

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Solution

The fourth proportional to 11,988.06, 17,986.41 and 4,198.02 is: 6,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.06 : 17,986.41 = 4,198.02 : x
  2. Step 2: Convert to fraction form
    11,988.06/17,986.41 = 4,198.02/x
  3. Step 3: Cross multiply
    11,988.06x = 17,986.41 × 4,198.02
  4. Step 4: Simplify right side
    11,988.06x = 75,507,308.91
  5. Step 5: Solve for x
    x = 75,507,308.91/11,988.06
  6. Step 6: Final answer
    x = 6,298.54

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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.