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Finding the Fourth Proportional to 13,400.72, 20,108 and 6,010.32

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Solution

The fourth proportional to 13,400.72, 20,108 and 6,010.32 is: 9,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.72 : 20,108 = 6,010.32 : x
  2. Step 2: Convert to fraction form
    13,400.72/20,108 = 6,010.32/x
  3. Step 3: Cross multiply
    13,400.72x = 20,108 × 6,010.32
  4. Step 4: Simplify right side
    13,400.72x = 120,855,514.56
  5. Step 5: Solve for x
    x = 120,855,514.56/13,400.72
  6. Step 6: Final answer
    x = 9,018.58

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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.