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Finding the Third Proportional to 6,405.75 and 13,969.13

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Solution

The third proportional to 6,405.75 and 13,969.13 is: 30,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.75 : 13,969.13 = 13,969.13 : x
  2. Step 2: Convert to fraction form
    6,405.75/13,969.13 = 13,969.13/x
  3. Step 3: Cross multiply
    6,405.75x = 13,969.13 × 13,969.13
  4. Step 4: Simplify right side
    6,405.75x = 195,136,453.27
  5. Step 5: Solve for x
    x = 195,136,453.27/6,405.75
  6. Step 6: Final answer
    x = 30,462.70

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.