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Finding the Third Proportional to 9,840 and 15,069

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Solution

The third proportional to 9,840 and 15,069 is: 23,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840 : 15,069 = 15,069 : x
  2. Step 2: Convert to fraction form
    9,840/15,069 = 15,069/x
  3. Step 3: Cross multiply
    9,840x = 15,069 × 15,069
  4. Step 4: Simplify right side
    9,840x = 227,074,761
  5. Step 5: Solve for x
    x = 227,074,761/9,840
  6. Step 6: Final answer
    x = 23,076.70

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.