Home / 19,661.97-29,481.72-9,126.57

Finding the Fourth Proportional to 19,661.97, 29,481.72 and 9,126.57

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Solution

The fourth proportional to 19,661.97, 29,481.72 and 9,126.57 is: 13,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.97 : 29,481.72 = 9,126.57 : x
  2. Step 2: Convert to fraction form
    19,661.97/29,481.72 = 9,126.57/x
  3. Step 3: Cross multiply
    19,661.97x = 29,481.72 × 9,126.57
  4. Step 4: Simplify right side
    19,661.97x = 269,067,057.63
  5. Step 5: Solve for x
    x = 269,067,057.63/19,661.97
  6. Step 6: Final answer
    x = 13,684.64

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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.