Home / 13,625.82-20,438.51-3,764.88

Finding the Fourth Proportional to 13,625.82, 20,438.51 and 3,764.88

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Solution

The fourth proportional to 13,625.82, 20,438.51 and 3,764.88 is: 5,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.82 : 20,438.51 = 3,764.88 : x
  2. Step 2: Convert to fraction form
    13,625.82/20,438.51 = 3,764.88/x
  3. Step 3: Cross multiply
    13,625.82x = 20,438.51 × 3,764.88
  4. Step 4: Simplify right side
    13,625.82x = 76,948,435.34
  5. Step 5: Solve for x
    x = 76,948,435.34/13,625.82
  6. Step 6: Final answer
    x = 5,647.25

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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.