Home / 11,571.39-17,343.16-5,322.79

Finding the Fourth Proportional to 11,571.39, 17,343.16 and 5,322.79

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Solution

The fourth proportional to 11,571.39, 17,343.16 and 5,322.79 is: 7,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571.39 : 17,343.16 = 5,322.79 : x
  2. Step 2: Convert to fraction form
    11,571.39/17,343.16 = 5,322.79/x
  3. Step 3: Cross multiply
    11,571.39x = 17,343.16 × 5,322.79
  4. Step 4: Simplify right side
    11,571.39x = 92,313,911.90
  5. Step 5: Solve for x
    x = 92,313,911.90/11,571.39
  6. Step 6: Final answer
    x = 7,977.78

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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.