Home / 18,629.42-27,956.68-6,942.64

Finding the Fourth Proportional to 18,629.42, 27,956.68 and 6,942.64

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Solution

The fourth proportional to 18,629.42, 27,956.68 and 6,942.64 is: 10,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.42 : 27,956.68 = 6,942.64 : x
  2. Step 2: Convert to fraction form
    18,629.42/27,956.68 = 6,942.64/x
  3. Step 3: Cross multiply
    18,629.42x = 27,956.68 × 6,942.64
  4. Step 4: Simplify right side
    18,629.42x = 194,093,164.84
  5. Step 5: Solve for x
    x = 194,093,164.84/18,629.42
  6. Step 6: Final answer
    x = 10,418.64

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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.