Home / 11,336.80-16,997.10-5,091.70

Finding the Fourth Proportional to 11,336.80, 16,997.10 and 5,091.70

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Solution

The fourth proportional to 11,336.80, 16,997.10 and 5,091.70 is: 7,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.80 : 16,997.10 = 5,091.70 : x
  2. Step 2: Convert to fraction form
    11,336.80/16,997.10 = 5,091.70/x
  3. Step 3: Cross multiply
    11,336.80x = 16,997.10 × 5,091.70
  4. Step 4: Simplify right side
    11,336.80x = 86,544,134.07
  5. Step 5: Solve for x
    x = 86,544,134.07/11,336.80
  6. Step 6: Final answer
    x = 7,633.91

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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.