Home / 12,855.17-19,229.43-12,067.85

Finding the Fourth Proportional to 12,855.17, 19,229.43 and 12,067.85

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Solution

The fourth proportional to 12,855.17, 19,229.43 and 12,067.85 is: 18,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.17 : 19,229.43 = 12,067.85 : x
  2. Step 2: Convert to fraction form
    12,855.17/19,229.43 = 12,067.85/x
  3. Step 3: Cross multiply
    12,855.17x = 19,229.43 × 12,067.85
  4. Step 4: Simplify right side
    12,855.17x = 232,057,970.15
  5. Step 5: Solve for x
    x = 232,057,970.15/12,855.17
  6. Step 6: Final answer
    x = 18,051.72

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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.