Home / 13,672.82-20,493.30-6,278.06

Finding the Fourth Proportional to 13,672.82, 20,493.30 and 6,278.06

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Solution

The fourth proportional to 13,672.82, 20,493.30 and 6,278.06 is: 9,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.82 : 20,493.30 = 6,278.06 : x
  2. Step 2: Convert to fraction form
    13,672.82/20,493.30 = 6,278.06/x
  3. Step 3: Cross multiply
    13,672.82x = 20,493.30 × 6,278.06
  4. Step 4: Simplify right side
    13,672.82x = 128,658,167.00
  5. Step 5: Solve for x
    x = 128,658,167.00/13,672.82
  6. Step 6: Final answer
    x = 9,409.78

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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.