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Finding the Third Proportional to 6,153.75 and 6,639.75

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Solution

The third proportional to 6,153.75 and 6,639.75 is: 7,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,153.75 : 6,639.75 = 6,639.75 : x
  2. Step 2: Convert to fraction form
    6,153.75/6,639.75 = 6,639.75/x
  3. Step 3: Cross multiply
    6,153.75x = 6,639.75 × 6,639.75
  4. Step 4: Simplify right side
    6,153.75x = 44,086,280.06
  5. Step 5: Solve for x
    x = 44,086,280.06/6,153.75
  6. Step 6: Final answer
    x = 7,164.13

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.