Home / 11,929.96-17,896.77-3,922.21

Finding the Fourth Proportional to 11,929.96, 17,896.77 and 3,922.21

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Solution

The fourth proportional to 11,929.96, 17,896.77 and 3,922.21 is: 5,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.96 : 17,896.77 = 3,922.21 : x
  2. Step 2: Convert to fraction form
    11,929.96/17,896.77 = 3,922.21/x
  3. Step 3: Cross multiply
    11,929.96x = 17,896.77 × 3,922.21
  4. Step 4: Simplify right side
    11,929.96x = 70,194,890.26
  5. Step 5: Solve for x
    x = 70,194,890.26/11,929.96
  6. Step 6: Final answer
    x = 5,883.92

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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.