Home / 19,676.12-27,150.80-11,716.82

Finding the Fourth Proportional to 19,676.12, 27,150.80 and 11,716.82

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Solution

The fourth proportional to 19,676.12, 27,150.80 and 11,716.82 is: 16,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.12 : 27,150.80 = 11,716.82 : x
  2. Step 2: Convert to fraction form
    19,676.12/27,150.80 = 11,716.82/x
  3. Step 3: Cross multiply
    19,676.12x = 27,150.80 × 11,716.82
  4. Step 4: Simplify right side
    19,676.12x = 318,120,943.93
  5. Step 5: Solve for x
    x = 318,120,943.93/19,676.12
  6. Step 6: Final answer
    x = 16,167.87

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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.