Home / 11,752.80-17,629.12-3,961.60

Finding the Fourth Proportional to 11,752.80, 17,629.12 and 3,961.60

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Solution

The fourth proportional to 11,752.80, 17,629.12 and 3,961.60 is: 5,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,752.80 : 17,629.12 = 3,961.60 : x
  2. Step 2: Convert to fraction form
    11,752.80/17,629.12 = 3,961.60/x
  3. Step 3: Cross multiply
    11,752.80x = 17,629.12 × 3,961.60
  4. Step 4: Simplify right side
    11,752.80x = 69,839,521.79
  5. Step 5: Solve for x
    x = 69,839,521.79/11,752.80
  6. Step 6: Final answer
    x = 5,942.37

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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.