Home / 13,764.91-20,648.15-3,903.41

Finding the Fourth Proportional to 13,764.91, 20,648.15 and 3,903.41

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Solution

The fourth proportional to 13,764.91, 20,648.15 and 3,903.41 is: 5,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.91 : 20,648.15 = 3,903.41 : x
  2. Step 2: Convert to fraction form
    13,764.91/20,648.15 = 3,903.41/x
  3. Step 3: Cross multiply
    13,764.91x = 20,648.15 × 3,903.41
  4. Step 4: Simplify right side
    13,764.91x = 80,598,072.43
  5. Step 5: Solve for x
    x = 80,598,072.43/13,764.91
  6. Step 6: Final answer
    x = 5,855.33

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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.