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Finding the Fourth Proportional to 13,763.99, 20,645.99 and 3,902.04

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Solution

The fourth proportional to 13,763.99, 20,645.99 and 3,902.04 is: 5,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.99 : 20,645.99 = 3,902.04 : x
  2. Step 2: Convert to fraction form
    13,763.99/20,645.99 = 3,902.04/x
  3. Step 3: Cross multiply
    13,763.99x = 20,645.99 × 3,902.04
  4. Step 4: Simplify right side
    13,763.99x = 80,561,473.94
  5. Step 5: Solve for x
    x = 80,561,473.94/13,763.99
  6. Step 6: Final answer
    x = 5,853.06

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1.5x scale

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.