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Finding the Third Proportional to 7,788 and 8,895

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Solution

The third proportional to 7,788 and 8,895 is: 10,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788 : 8,895 = 8,895 : x
  2. Step 2: Convert to fraction form
    7,788/8,895 = 8,895/x
  3. Step 3: Cross multiply
    7,788x = 8,895 × 8,895
  4. Step 4: Simplify right side
    7,788x = 79,121,025
  5. Step 5: Solve for x
    x = 79,121,025/7,788
  6. Step 6: Final answer
    x = 10,159.35

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.