Home / 11,772.09-17,658.75-5,198.34

Finding the Fourth Proportional to 11,772.09, 17,658.75 and 5,198.34

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Solution

The fourth proportional to 11,772.09, 17,658.75 and 5,198.34 is: 7,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.09 : 17,658.75 = 5,198.34 : x
  2. Step 2: Convert to fraction form
    11,772.09/17,658.75 = 5,198.34/x
  3. Step 3: Cross multiply
    11,772.09x = 17,658.75 × 5,198.34
  4. Step 4: Simplify right side
    11,772.09x = 91,796,186.48
  5. Step 5: Solve for x
    x = 91,796,186.48/11,772.09
  6. Step 6: Final answer
    x = 7,797.78

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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.