Home / 12,387.98-18,579.97-4,067.83

Finding the Fourth Proportional to 12,387.98, 18,579.97 and 4,067.83

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Solution

The fourth proportional to 12,387.98, 18,579.97 and 4,067.83 is: 6,101.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.98 : 18,579.97 = 4,067.83 : x
  2. Step 2: Convert to fraction form
    12,387.98/18,579.97 = 4,067.83/x
  3. Step 3: Cross multiply
    12,387.98x = 18,579.97 × 4,067.83
  4. Step 4: Simplify right side
    12,387.98x = 75,580,159.37
  5. Step 5: Solve for x
    x = 75,580,159.37/12,387.98
  6. Step 6: Final answer
    x = 6,101.09

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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.