Home / 20,197.14-27,872.97-11,699.64

Finding the Fourth Proportional to 20,197.14, 27,872.97 and 11,699.64

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Solution

The fourth proportional to 20,197.14, 27,872.97 and 11,699.64 is: 16,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.14 : 27,872.97 = 11,699.64 : x
  2. Step 2: Convert to fraction form
    20,197.14/27,872.97 = 11,699.64/x
  3. Step 3: Cross multiply
    20,197.14x = 27,872.97 × 11,699.64
  4. Step 4: Simplify right side
    20,197.14x = 326,103,714.73
  5. Step 5: Solve for x
    x = 326,103,714.73/20,197.14
  6. Step 6: Final answer
    x = 16,146.03

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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.