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Finding the Third Proportional to 6,138 and 9,520

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Solution

The third proportional to 6,138 and 9,520 is: 14,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138 : 9,520 = 9,520 : x
  2. Step 2: Convert to fraction form
    6,138/9,520 = 9,520/x
  3. Step 3: Cross multiply
    6,138x = 9,520 × 9,520
  4. Step 4: Simplify right side
    6,138x = 90,630,400
  5. Step 5: Solve for x
    x = 90,630,400/6,138
  6. Step 6: Final answer
    x = 14,765.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.