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Finding the Third Proportional to 4,990 and 11,773

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Solution

The third proportional to 4,990 and 11,773 is: 27,776.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990 : 11,773 = 11,773 : x
  2. Step 2: Convert to fraction form
    4,990/11,773 = 11,773/x
  3. Step 3: Cross multiply
    4,990x = 11,773 × 11,773
  4. Step 4: Simplify right side
    4,990x = 138,603,529
  5. Step 5: Solve for x
    x = 138,603,529/4,990
  6. Step 6: Final answer
    x = 27,776.26

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.