Home / 13,936.96-20,911.29-8,676.37

Finding the Fourth Proportional to 13,936.96, 20,911.29 and 8,676.37

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Solution

The fourth proportional to 13,936.96, 20,911.29 and 8,676.37 is: 13,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.96 : 20,911.29 = 8,676.37 : x
  2. Step 2: Convert to fraction form
    13,936.96/20,911.29 = 8,676.37/x
  3. Step 3: Cross multiply
    13,936.96x = 20,911.29 × 8,676.37
  4. Step 4: Simplify right side
    13,936.96x = 181,433,965.19
  5. Step 5: Solve for x
    x = 181,433,965.19/13,936.96
  6. Step 6: Final answer
    x = 13,018.19

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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.