Home / 11,972.80-17,961.09-3,650.91

Finding the Fourth Proportional to 11,972.80, 17,961.09 and 3,650.91

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Solution

The fourth proportional to 11,972.80, 17,961.09 and 3,650.91 is: 5,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.80 : 17,961.09 = 3,650.91 : x
  2. Step 2: Convert to fraction form
    11,972.80/17,961.09 = 3,650.91/x
  3. Step 3: Cross multiply
    11,972.80x = 17,961.09 × 3,650.91
  4. Step 4: Simplify right side
    11,972.80x = 65,574,323.09
  5. Step 5: Solve for x
    x = 65,574,323.09/11,972.80
  6. Step 6: Final answer
    x = 5,476.94

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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.