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Finding the Third Proportional to 7,820 and 8,954

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Solution

The third proportional to 7,820 and 8,954 is: 10,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820 : 8,954 = 8,954 : x
  2. Step 2: Convert to fraction form
    7,820/8,954 = 8,954/x
  3. Step 3: Cross multiply
    7,820x = 8,954 × 8,954
  4. Step 4: Simplify right side
    7,820x = 80,174,116
  5. Step 5: Solve for x
    x = 80,174,116/7,820
  6. Step 6: Final answer
    x = 10,252.44

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.