Home / 18,618.82-27,933.09-6,140.74

Finding the Fourth Proportional to 18,618.82, 27,933.09 and 6,140.74

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Solution

The fourth proportional to 18,618.82, 27,933.09 and 6,140.74 is: 9,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.82 : 27,933.09 = 6,140.74 : x
  2. Step 2: Convert to fraction form
    18,618.82/27,933.09 = 6,140.74/x
  3. Step 3: Cross multiply
    18,618.82x = 27,933.09 × 6,140.74
  4. Step 4: Simplify right side
    18,618.82x = 171,529,843.09
  5. Step 5: Solve for x
    x = 171,529,843.09/18,618.82
  6. Step 6: Final answer
    x = 9,212.71

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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.