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Finding the Third Proportional to 6,828.75 and 9,345.50

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Solution

The third proportional to 6,828.75 and 9,345.50 is: 12,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.75 : 9,345.50 = 9,345.50 : x
  2. Step 2: Convert to fraction form
    6,828.75/9,345.50 = 9,345.50/x
  3. Step 3: Cross multiply
    6,828.75x = 9,345.50 × 9,345.50
  4. Step 4: Simplify right side
    6,828.75x = 87,338,370.25
  5. Step 5: Solve for x
    x = 87,338,370.25/6,828.75
  6. Step 6: Final answer
    x = 12,789.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.