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Finding the Third Proportional to 5,718.25 and 12,438.25

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Solution

The third proportional to 5,718.25 and 12,438.25 is: 27,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.25 : 12,438.25 = 12,438.25 : x
  2. Step 2: Convert to fraction form
    5,718.25/12,438.25 = 12,438.25/x
  3. Step 3: Cross multiply
    5,718.25x = 12,438.25 × 12,438.25
  4. Step 4: Simplify right side
    5,718.25x = 154,710,063.06
  5. Step 5: Solve for x
    x = 154,710,063.06/5,718.25
  6. Step 6: Final answer
    x = 27,055.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.