Home / 11,163.36-15,399.54-6,974.04

Finding the Fourth Proportional to 11,163.36, 15,399.54 and 6,974.04

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Solution

The fourth proportional to 11,163.36, 15,399.54 and 6,974.04 is: 9,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.36 : 15,399.54 = 6,974.04 : x
  2. Step 2: Convert to fraction form
    11,163.36/15,399.54 = 6,974.04/x
  3. Step 3: Cross multiply
    11,163.36x = 15,399.54 × 6,974.04
  4. Step 4: Simplify right side
    11,163.36x = 107,397,007.94
  5. Step 5: Solve for x
    x = 107,397,007.94/11,163.36
  6. Step 6: Final answer
    x = 9,620.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.