Home / 11,757.62-16,221.94-6,721.58

Finding the Fourth Proportional to 11,757.62, 16,221.94 and 6,721.58

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Solution

The fourth proportional to 11,757.62, 16,221.94 and 6,721.58 is: 9,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.62 : 16,221.94 = 6,721.58 : x
  2. Step 2: Convert to fraction form
    11,757.62/16,221.94 = 6,721.58/x
  3. Step 3: Cross multiply
    11,757.62x = 16,221.94 × 6,721.58
  4. Step 4: Simplify right side
    11,757.62x = 109,037,091.22
  5. Step 5: Solve for x
    x = 109,037,091.22/11,757.62
  6. Step 6: Final answer
    x = 9,273.74

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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.