Home / 11,757.20-17,636.70-3,966

Finding the Fourth Proportional to 11,757.20, 17,636.70 and 3,966

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Solution

The fourth proportional to 11,757.20, 17,636.70 and 3,966 is: 5,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.20 : 17,636.70 = 3,966 : x
  2. Step 2: Convert to fraction form
    11,757.20/17,636.70 = 3,966/x
  3. Step 3: Cross multiply
    11,757.20x = 17,636.70 × 3,966
  4. Step 4: Simplify right side
    11,757.20x = 69,947,152.20
  5. Step 5: Solve for x
    x = 69,947,152.20/11,757.20
  6. Step 6: Final answer
    x = 5,949.31

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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.