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Finding the Third Proportional to 6,258.75 and 12,690.38

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Solution

The third proportional to 6,258.75 and 12,690.38 is: 25,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.75 : 12,690.38 = 12,690.38 : x
  2. Step 2: Convert to fraction form
    6,258.75/12,690.38 = 12,690.38/x
  3. Step 3: Cross multiply
    6,258.75x = 12,690.38 × 12,690.38
  4. Step 4: Simplify right side
    6,258.75x = 161,045,617.64
  5. Step 5: Solve for x
    x = 161,045,617.64/6,258.75
  6. Step 6: Final answer
    x = 25,731.28

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.