Home / 13,755.75-20,635.00-4,991.35

Finding the Fourth Proportional to 13,755.75, 20,635.00 and 4,991.35

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Solution

The fourth proportional to 13,755.75, 20,635.00 and 4,991.35 is: 7,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.75 : 20,635.00 = 4,991.35 : x
  2. Step 2: Convert to fraction form
    13,755.75/20,635.00 = 4,991.35/x
  3. Step 3: Cross multiply
    13,755.75x = 20,635.00 × 4,991.35
  4. Step 4: Simplify right side
    13,755.75x = 102,996,520.57
  5. Step 5: Solve for x
    x = 102,996,520.57/13,755.75
  6. Step 6: Final answer
    x = 7,487.52

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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.