Home / 13,695.26-20,551.39-8,768.43

Finding the Fourth Proportional to 13,695.26, 20,551.39 and 8,768.43

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Solution

The fourth proportional to 13,695.26, 20,551.39 and 8,768.43 is: 13,158.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.26 : 20,551.39 = 8,768.43 : x
  2. Step 2: Convert to fraction form
    13,695.26/20,551.39 = 8,768.43/x
  3. Step 3: Cross multiply
    13,695.26x = 20,551.39 × 8,768.43
  4. Step 4: Simplify right side
    13,695.26x = 180,203,380.78
  5. Step 5: Solve for x
    x = 180,203,380.78/13,695.26
  6. Step 6: Final answer
    x = 13,158.09

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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.