Home / 13,414.08-20,121.12-5,516.56

Finding the Fourth Proportional to 13,414.08, 20,121.12 and 5,516.56

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Solution

The fourth proportional to 13,414.08, 20,121.12 and 5,516.56 is: 8,274.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.08 : 20,121.12 = 5,516.56 : x
  2. Step 2: Convert to fraction form
    13,414.08/20,121.12 = 5,516.56/x
  3. Step 3: Cross multiply
    13,414.08x = 20,121.12 × 5,516.56
  4. Step 4: Simplify right side
    13,414.08x = 110,999,365.75
  5. Step 5: Solve for x
    x = 110,999,365.75/13,414.08
  6. Step 6: Final answer
    x = 8,274.84

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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.