Home / 11,756.45-17,634.78-2,991.38

Finding the Fourth Proportional to 11,756.45, 17,634.78 and 2,991.38

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Solution

The fourth proportional to 11,756.45, 17,634.78 and 2,991.38 is: 4,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.45 : 17,634.78 = 2,991.38 : x
  2. Step 2: Convert to fraction form
    11,756.45/17,634.78 = 2,991.38/x
  3. Step 3: Cross multiply
    11,756.45x = 17,634.78 × 2,991.38
  4. Step 4: Simplify right side
    11,756.45x = 52,752,240.02
  5. Step 5: Solve for x
    x = 52,752,240.02/11,756.45
  6. Step 6: Final answer
    x = 4,487.09

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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.