Home / 19,912.56-27,477.78-11,414.58

Finding the Fourth Proportional to 19,912.56, 27,477.78 and 11,414.58

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Solution

The fourth proportional to 19,912.56, 27,477.78 and 11,414.58 is: 15,751.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.56 : 27,477.78 = 11,414.58 : x
  2. Step 2: Convert to fraction form
    19,912.56/27,477.78 = 11,414.58/x
  3. Step 3: Cross multiply
    19,912.56x = 27,477.78 × 11,414.58
  4. Step 4: Simplify right side
    19,912.56x = 313,647,318.03
  5. Step 5: Solve for x
    x = 313,647,318.03/19,912.56
  6. Step 6: Final answer
    x = 15,751.23

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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.