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Finding the Third Proportional to 4,564.75 and 9,821.38

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Solution

The third proportional to 4,564.75 and 9,821.38 is: 21,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,564.75 : 9,821.38 = 9,821.38 : x
  2. Step 2: Convert to fraction form
    4,564.75/9,821.38 = 9,821.38/x
  3. Step 3: Cross multiply
    4,564.75x = 9,821.38 × 9,821.38
  4. Step 4: Simplify right side
    4,564.75x = 96,459,406.89
  5. Step 5: Solve for x
    x = 96,459,406.89/4,564.75
  6. Step 6: Final answer
    x = 21,131.37

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.