Home / 13,611.38-20,399.24-9,256.82

Finding the Fourth Proportional to 13,611.38, 20,399.24 and 9,256.82

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Solution

The fourth proportional to 13,611.38, 20,399.24 and 9,256.82 is: 13,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.38 : 20,399.24 = 9,256.82 : x
  2. Step 2: Convert to fraction form
    13,611.38/20,399.24 = 9,256.82/x
  3. Step 3: Cross multiply
    13,611.38x = 20,399.24 × 9,256.82
  4. Step 4: Simplify right side
    13,611.38x = 188,832,013.96
  5. Step 5: Solve for x
    x = 188,832,013.96/13,611.38
  6. Step 6: Final answer
    x = 13,873.10

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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.