Home / 13,917.06-20,872.35-6,514.47

Finding the Fourth Proportional to 13,917.06, 20,872.35 and 6,514.47

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Solution

The fourth proportional to 13,917.06, 20,872.35 and 6,514.47 is: 9,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.06 : 20,872.35 = 6,514.47 : x
  2. Step 2: Convert to fraction form
    13,917.06/20,872.35 = 6,514.47/x
  3. Step 3: Cross multiply
    13,917.06x = 20,872.35 × 6,514.47
  4. Step 4: Simplify right side
    13,917.06x = 135,972,297.90
  5. Step 5: Solve for x
    x = 135,972,297.90/13,917.06
  6. Step 6: Final answer
    x = 9,770.19

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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.