Home / 11,939.36-17,902.88-5,359.91

Finding the Fourth Proportional to 11,939.36, 17,902.88 and 5,359.91

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Solution

The fourth proportional to 11,939.36, 17,902.88 and 5,359.91 is: 8,037.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.36 : 17,902.88 = 5,359.91 : x
  2. Step 2: Convert to fraction form
    11,939.36/17,902.88 = 5,359.91/x
  3. Step 3: Cross multiply
    11,939.36x = 17,902.88 × 5,359.91
  4. Step 4: Simplify right side
    11,939.36x = 95,957,709.23
  5. Step 5: Solve for x
    x = 95,957,709.23/11,939.36
  6. Step 6: Final answer
    x = 8,037.09

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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.