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Finding the Third Proportional to 4,252.69 and 9,120.56

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Solution

The third proportional to 4,252.69 and 9,120.56 is: 19,560.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,252.69 : 9,120.56 = 9,120.56 : x
  2. Step 2: Convert to fraction form
    4,252.69/9,120.56 = 9,120.56/x
  3. Step 3: Cross multiply
    4,252.69x = 9,120.56 × 9,120.56
  4. Step 4: Simplify right side
    4,252.69x = 83,184,660.32
  5. Step 5: Solve for x
    x = 83,184,660.32/4,252.69
  6. Step 6: Final answer
    x = 19,560.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.