Home / 11,956.91-17,935.16-5,378.45

Finding the Fourth Proportional to 11,956.91, 17,935.16 and 5,378.45

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Solution

The fourth proportional to 11,956.91, 17,935.16 and 5,378.45 is: 8,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.91 : 17,935.16 = 5,378.45 : x
  2. Step 2: Convert to fraction form
    11,956.91/17,935.16 = 5,378.45/x
  3. Step 3: Cross multiply
    11,956.91x = 17,935.16 × 5,378.45
  4. Step 4: Simplify right side
    11,956.91x = 96,463,244.73
  5. Step 5: Solve for x
    x = 96,463,244.73/11,956.91
  6. Step 6: Final answer
    x = 8,067.58

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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.