Home / 11,786.90-17,680.37-3,021.84

Finding the Fourth Proportional to 11,786.90, 17,680.37 and 3,021.84

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Solution

The fourth proportional to 11,786.90, 17,680.37 and 3,021.84 is: 4,532.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.90 : 17,680.37 = 3,021.84 : x
  2. Step 2: Convert to fraction form
    11,786.90/17,680.37 = 3,021.84/x
  3. Step 3: Cross multiply
    11,786.90x = 17,680.37 × 3,021.84
  4. Step 4: Simplify right side
    11,786.90x = 53,427,234.17
  5. Step 5: Solve for x
    x = 53,427,234.17/11,786.90
  6. Step 6: Final answer
    x = 4,532.77

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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.