Home / 11,971.35-17,932.75-5,550.91

Finding the Fourth Proportional to 11,971.35, 17,932.75 and 5,550.91

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Solution

The fourth proportional to 11,971.35, 17,932.75 and 5,550.91 is: 8,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.35 : 17,932.75 = 5,550.91 : x
  2. Step 2: Convert to fraction form
    11,971.35/17,932.75 = 5,550.91/x
  3. Step 3: Cross multiply
    11,971.35x = 17,932.75 × 5,550.91
  4. Step 4: Simplify right side
    11,971.35x = 99,543,053.55
  5. Step 5: Solve for x
    x = 99,543,053.55/11,971.35
  6. Step 6: Final answer
    x = 8,315.11

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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.