Home / 13,467.72-20,188.62-6,897

Finding the Fourth Proportional to 13,467.72, 20,188.62 and 6,897

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Solution

The fourth proportional to 13,467.72, 20,188.62 and 6,897 is: 10,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.72 : 20,188.62 = 6,897 : x
  2. Step 2: Convert to fraction form
    13,467.72/20,188.62 = 6,897/x
  3. Step 3: Cross multiply
    13,467.72x = 20,188.62 × 6,897
  4. Step 4: Simplify right side
    13,467.72x = 139,240,912.14
  5. Step 5: Solve for x
    x = 139,240,912.14/13,467.72
  6. Step 6: Final answer
    x = 10,338.86

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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.