Home / 13,523.62-20,255.76-11,157

Finding the Fourth Proportional to 13,523.62, 20,255.76 and 11,157

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Solution

The fourth proportional to 13,523.62, 20,255.76 and 11,157 is: 16,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.62 : 20,255.76 = 11,157 : x
  2. Step 2: Convert to fraction form
    13,523.62/20,255.76 = 11,157/x
  3. Step 3: Cross multiply
    13,523.62x = 20,255.76 × 11,157
  4. Step 4: Simplify right side
    13,523.62x = 225,993,514.32
  5. Step 5: Solve for x
    x = 225,993,514.32/13,523.62
  6. Step 6: Final answer
    x = 16,711.02

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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.