Home / 13,676.26-18,874.66-8,374.60

Finding the Fourth Proportional to 13,676.26, 18,874.66 and 8,374.60

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Solution

The fourth proportional to 13,676.26, 18,874.66 and 8,374.60 is: 11,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.26 : 18,874.66 = 8,374.60 : x
  2. Step 2: Convert to fraction form
    13,676.26/18,874.66 = 8,374.60/x
  3. Step 3: Cross multiply
    13,676.26x = 18,874.66 × 8,374.60
  4. Step 4: Simplify right side
    13,676.26x = 158,067,727.64
  5. Step 5: Solve for x
    x = 158,067,727.64/13,676.26
  6. Step 6: Final answer
    x = 11,557.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.