Home / 13,676.82-20,507.40-8,134.04

Finding the Fourth Proportional to 13,676.82, 20,507.40 and 8,134.04

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Solution

The fourth proportional to 13,676.82, 20,507.40 and 8,134.04 is: 12,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.82 : 20,507.40 = 8,134.04 : x
  2. Step 2: Convert to fraction form
    13,676.82/20,507.40 = 8,134.04/x
  3. Step 3: Cross multiply
    13,676.82x = 20,507.40 × 8,134.04
  4. Step 4: Simplify right side
    13,676.82x = 166,807,909.36
  5. Step 5: Solve for x
    x = 166,807,909.36/13,676.82
  6. Step 6: Final answer
    x = 12,196.40

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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.