Home / 19,661.97-27,133.07-10,709.45

Finding the Fourth Proportional to 19,661.97, 27,133.07 and 10,709.45

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Solution

The fourth proportional to 19,661.97, 27,133.07 and 10,709.45 is: 14,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.97 : 27,133.07 = 10,709.45 : x
  2. Step 2: Convert to fraction form
    19,661.97/27,133.07 = 10,709.45/x
  3. Step 3: Cross multiply
    19,661.97x = 27,133.07 × 10,709.45
  4. Step 4: Simplify right side
    19,661.97x = 290,580,067.30
  5. Step 5: Solve for x
    x = 290,580,067.30/19,661.97
  6. Step 6: Final answer
    x = 14,778.79

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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.