Home / 19,664.36-27,139.20-11,169.14

Finding the Fourth Proportional to 19,664.36, 27,139.20 and 11,169.14

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Solution

The fourth proportional to 19,664.36, 27,139.20 and 11,169.14 is: 15,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.36 : 27,139.20 = 11,169.14 : x
  2. Step 2: Convert to fraction form
    19,664.36/27,139.20 = 11,169.14/x
  3. Step 3: Cross multiply
    19,664.36x = 27,139.20 × 11,169.14
  4. Step 4: Simplify right side
    19,664.36x = 303,121,524.29
  5. Step 5: Solve for x
    x = 303,121,524.29/19,664.36
  6. Step 6: Final answer
    x = 15,414.77

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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.