Home / 11,977.65-17,974.62-4,186.44

Finding the Fourth Proportional to 11,977.65, 17,974.62 and 4,186.44

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Solution

The fourth proportional to 11,977.65, 17,974.62 and 4,186.44 is: 6,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.65 : 17,974.62 = 4,186.44 : x
  2. Step 2: Convert to fraction form
    11,977.65/17,974.62 = 4,186.44/x
  3. Step 3: Cross multiply
    11,977.65x = 17,974.62 × 4,186.44
  4. Step 4: Simplify right side
    11,977.65x = 75,249,668.15
  5. Step 5: Solve for x
    x = 75,249,668.15/11,977.65
  6. Step 6: Final answer
    x = 6,282.51

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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.