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Finding the Third Proportional to 7,122.94 and 11,057.34

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Solution

The third proportional to 7,122.94 and 11,057.34 is: 17,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.94 : 11,057.34 = 11,057.34 : x
  2. Step 2: Convert to fraction form
    7,122.94/11,057.34 = 11,057.34/x
  3. Step 3: Cross multiply
    7,122.94x = 11,057.34 × 11,057.34
  4. Step 4: Simplify right side
    7,122.94x = 122,264,850.81
  5. Step 5: Solve for x
    x = 122,264,850.81/7,122.94
  6. Step 6: Final answer
    x = 17,164.95

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.