Home / 13,504.75-20,255.65-3,645.03

Finding the Fourth Proportional to 13,504.75, 20,255.65 and 3,645.03

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Solution

The fourth proportional to 13,504.75, 20,255.65 and 3,645.03 is: 5,467.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.75 : 20,255.65 = 3,645.03 : x
  2. Step 2: Convert to fraction form
    13,504.75/20,255.65 = 3,645.03/x
  3. Step 3: Cross multiply
    13,504.75x = 20,255.65 × 3,645.03
  4. Step 4: Simplify right side
    13,504.75x = 73,832,451.92
  5. Step 5: Solve for x
    x = 73,832,451.92/13,504.75
  6. Step 6: Final answer
    x = 5,467.15

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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.