Home / 15,745.19-21,727.98-8,671.73

Finding the Fourth Proportional to 15,745.19, 21,727.98 and 8,671.73

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Solution

The fourth proportional to 15,745.19, 21,727.98 and 8,671.73 is: 11,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.19 : 21,727.98 = 8,671.73 : x
  2. Step 2: Convert to fraction form
    15,745.19/21,727.98 = 8,671.73/x
  3. Step 3: Cross multiply
    15,745.19x = 21,727.98 × 8,671.73
  4. Step 4: Simplify right side
    15,745.19x = 188,419,067.37
  5. Step 5: Solve for x
    x = 188,419,067.37/15,745.19
  6. Step 6: Final answer
    x = 11,966.77

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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.