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Finding the Third Proportional to 3,128.50 and 6,716

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Solution

The third proportional to 3,128.50 and 6,716 is: 14,417.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.50 : 6,716 = 6,716 : x
  2. Step 2: Convert to fraction form
    3,128.50/6,716 = 6,716/x
  3. Step 3: Cross multiply
    3,128.50x = 6,716 × 6,716
  4. Step 4: Simplify right side
    3,128.50x = 45,104,656
  5. Step 5: Solve for x
    x = 45,104,656/3,128.50
  6. Step 6: Final answer
    x = 14,417.34

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Why These Related Problems?

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