Home / 11,121.59-16,759.75-10,067.72

Finding the Fourth Proportional to 11,121.59, 16,759.75 and 10,067.72

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Solution

The fourth proportional to 11,121.59, 16,759.75 and 10,067.72 is: 15,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.59 : 16,759.75 = 10,067.72 : x
  2. Step 2: Convert to fraction form
    11,121.59/16,759.75 = 10,067.72/x
  3. Step 3: Cross multiply
    11,121.59x = 16,759.75 × 10,067.72
  4. Step 4: Simplify right side
    11,121.59x = 168,732,422.57
  5. Step 5: Solve for x
    x = 168,732,422.57/11,121.59
  6. Step 6: Final answer
    x = 15,171.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.