Home / 13,965.62-20,942.96-4,102.25

Finding the Fourth Proportional to 13,965.62, 20,942.96 and 4,102.25

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Solution

The fourth proportional to 13,965.62, 20,942.96 and 4,102.25 is: 6,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.62 : 20,942.96 = 4,102.25 : x
  2. Step 2: Convert to fraction form
    13,965.62/20,942.96 = 4,102.25/x
  3. Step 3: Cross multiply
    13,965.62x = 20,942.96 × 4,102.25
  4. Step 4: Simplify right side
    13,965.62x = 85,913,132.43
  5. Step 5: Solve for x
    x = 85,913,132.43/13,965.62
  6. Step 6: Final answer
    x = 6,151.76

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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.