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Finding the Third Proportional to 7,773 and 12,069

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Solution

The third proportional to 7,773 and 12,069 is: 18,739.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773 : 12,069 = 12,069 : x
  2. Step 2: Convert to fraction form
    7,773/12,069 = 12,069/x
  3. Step 3: Cross multiply
    7,773x = 12,069 × 12,069
  4. Step 4: Simplify right side
    7,773x = 145,660,761
  5. Step 5: Solve for x
    x = 145,660,761/7,773
  6. Step 6: Final answer
    x = 18,739.32

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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.