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Finding the Third Proportional to 7,776 and 10,992.38

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Solution

The third proportional to 7,776 and 10,992.38 is: 15,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776 : 10,992.38 = 10,992.38 : x
  2. Step 2: Convert to fraction form
    7,776/10,992.38 = 10,992.38/x
  3. Step 3: Cross multiply
    7,776x = 10,992.38 × 10,992.38
  4. Step 4: Simplify right side
    7,776x = 120,832,308.14
  5. Step 5: Solve for x
    x = 120,832,308.14/7,776
  6. Step 6: Final answer
    x = 15,539.13

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.