Home / 19,891.97-27,450.89-11,396.85

Finding the Fourth Proportional to 19,891.97, 27,450.89 and 11,396.85

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Solution

The fourth proportional to 19,891.97, 27,450.89 and 11,396.85 is: 15,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.97 : 27,450.89 = 11,396.85 : x
  2. Step 2: Convert to fraction form
    19,891.97/27,450.89 = 11,396.85/x
  3. Step 3: Cross multiply
    19,891.97x = 27,450.89 × 11,396.85
  4. Step 4: Simplify right side
    19,891.97x = 312,853,558.51
  5. Step 5: Solve for x
    x = 312,853,558.51/19,891.97
  6. Step 6: Final answer
    x = 15,727.63

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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.