Home / 12,660.36-18,992.97-3,893.73

Finding the Fourth Proportional to 12,660.36, 18,992.97 and 3,893.73

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Solution

The fourth proportional to 12,660.36, 18,992.97 and 3,893.73 is: 5,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.36 : 18,992.97 = 3,893.73 : x
  2. Step 2: Convert to fraction form
    12,660.36/18,992.97 = 3,893.73/x
  3. Step 3: Cross multiply
    12,660.36x = 18,992.97 × 3,893.73
  4. Step 4: Simplify right side
    12,660.36x = 73,953,497.08
  5. Step 5: Solve for x
    x = 73,953,497.08/12,660.36
  6. Step 6: Final answer
    x = 5,841.34

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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.