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Finding the Third Proportional to 6,861 and 9,403.50

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Solution

The third proportional to 6,861 and 9,403.50 is: 12,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861 : 9,403.50 = 9,403.50 : x
  2. Step 2: Convert to fraction form
    6,861/9,403.50 = 9,403.50/x
  3. Step 3: Cross multiply
    6,861x = 9,403.50 × 9,403.50
  4. Step 4: Simplify right side
    6,861x = 88,425,812.25
  5. Step 5: Solve for x
    x = 88,425,812.25/6,861
  6. Step 6: Final answer
    x = 12,888.18

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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.