Home / 13,625.70-20,440.98-3,764.76

Finding the Fourth Proportional to 13,625.70, 20,440.98 and 3,764.76

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Solution

The fourth proportional to 13,625.70, 20,440.98 and 3,764.76 is: 5,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.70 : 20,440.98 = 3,764.76 : x
  2. Step 2: Convert to fraction form
    13,625.70/20,440.98 = 3,764.76/x
  3. Step 3: Cross multiply
    13,625.70x = 20,440.98 × 3,764.76
  4. Step 4: Simplify right side
    13,625.70x = 76,955,383.86
  5. Step 5: Solve for x
    x = 76,955,383.86/13,625.70
  6. Step 6: Final answer
    x = 5,647.81

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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.