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Finding the Fourth Proportional to 11,576.97, 17,355.74 and 7,868.79

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Solution

The fourth proportional to 11,576.97, 17,355.74 and 7,868.79 is: 11,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,576.97 : 17,355.74 = 7,868.79 : x
  2. Step 2: Convert to fraction form
    11,576.97/17,355.74 = 7,868.79/x
  3. Step 3: Cross multiply
    11,576.97x = 17,355.74 × 7,868.79
  4. Step 4: Simplify right side
    11,576.97x = 136,568,634.01
  5. Step 5: Solve for x
    x = 136,568,634.01/11,576.97
  6. Step 6: Final answer
    x = 11,796.58

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1.5x scale

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.