Home / 18,135.82-27,198.24-6,448.42

Finding the Fourth Proportional to 18,135.82, 27,198.24 and 6,448.42

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Solution

The fourth proportional to 18,135.82, 27,198.24 and 6,448.42 is: 9,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.82 : 27,198.24 = 6,448.42 : x
  2. Step 2: Convert to fraction form
    18,135.82/27,198.24 = 6,448.42/x
  3. Step 3: Cross multiply
    18,135.82x = 27,198.24 × 6,448.42
  4. Step 4: Simplify right side
    18,135.82x = 175,385,674.78
  5. Step 5: Solve for x
    x = 175,385,674.78/18,135.82
  6. Step 6: Final answer
    x = 9,670.68

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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.