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Finding the Third Proportional to 4,213.34 and 9,219.41

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Solution

The third proportional to 4,213.34 and 9,219.41 is: 20,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.34 : 9,219.41 = 9,219.41 : x
  2. Step 2: Convert to fraction form
    4,213.34/9,219.41 = 9,219.41/x
  3. Step 3: Cross multiply
    4,213.34x = 9,219.41 × 9,219.41
  4. Step 4: Simplify right side
    4,213.34x = 84,997,442.60
  5. Step 5: Solve for x
    x = 84,997,442.60/4,213.34
  6. Step 6: Final answer
    x = 20,173.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.