Home / 10,721.14-16,067.07-8,086.42

Finding the Fourth Proportional to 10,721.14, 16,067.07 and 8,086.42

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Solution

The fourth proportional to 10,721.14, 16,067.07 and 8,086.42 is: 12,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.14 : 16,067.07 = 8,086.42 : x
  2. Step 2: Convert to fraction form
    10,721.14/16,067.07 = 8,086.42/x
  3. Step 3: Cross multiply
    10,721.14x = 16,067.07 × 8,086.42
  4. Step 4: Simplify right side
    10,721.14x = 129,925,076.19
  5. Step 5: Solve for x
    x = 129,925,076.19/10,721.14
  6. Step 6: Final answer
    x = 12,118.59

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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.