Home / 11,989.44-17,986.64-3,668.96

Finding the Fourth Proportional to 11,989.44, 17,986.64 and 3,668.96

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Solution

The fourth proportional to 11,989.44, 17,986.64 and 3,668.96 is: 5,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.44 : 17,986.64 = 3,668.96 : x
  2. Step 2: Convert to fraction form
    11,989.44/17,986.64 = 3,668.96/x
  3. Step 3: Cross multiply
    11,989.44x = 17,986.64 × 3,668.96
  4. Step 4: Simplify right side
    11,989.44x = 65,992,262.69
  5. Step 5: Solve for x
    x = 65,992,262.69/11,989.44
  6. Step 6: Final answer
    x = 5,504.20

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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.