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Finding the Third Proportional to 7,762 and 16,399

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Solution

The third proportional to 7,762 and 16,399 is: 34,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762 : 16,399 = 16,399 : x
  2. Step 2: Convert to fraction form
    7,762/16,399 = 16,399/x
  3. Step 3: Cross multiply
    7,762x = 16,399 × 16,399
  4. Step 4: Simplify right side
    7,762x = 268,927,201
  5. Step 5: Solve for x
    x = 268,927,201/7,762
  6. Step 6: Final answer
    x = 34,646.64

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.