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Finding the Third Proportional to 7,072 and 8,152

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Solution

The third proportional to 7,072 and 8,152 is: 9,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072 : 8,152 = 8,152 : x
  2. Step 2: Convert to fraction form
    7,072/8,152 = 8,152/x
  3. Step 3: Cross multiply
    7,072x = 8,152 × 8,152
  4. Step 4: Simplify right side
    7,072x = 66,455,104
  5. Step 5: Solve for x
    x = 66,455,104/7,072
  6. Step 6: Final answer
    x = 9,396.93

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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.