Home / 11,317.96-16,972.89-3,920.46

Finding the Fourth Proportional to 11,317.96, 16,972.89 and 3,920.46

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Solution

The fourth proportional to 11,317.96, 16,972.89 and 3,920.46 is: 5,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.96 : 16,972.89 = 3,920.46 : x
  2. Step 2: Convert to fraction form
    11,317.96/16,972.89 = 3,920.46/x
  3. Step 3: Cross multiply
    11,317.96x = 16,972.89 × 3,920.46
  4. Step 4: Simplify right side
    11,317.96x = 66,541,536.33
  5. Step 5: Solve for x
    x = 66,541,536.33/11,317.96
  6. Step 6: Final answer
    x = 5,879.29

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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.