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Finding the Third Proportional to 6,939 and 14,242.50

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Solution

The third proportional to 6,939 and 14,242.50 is: 29,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939 : 14,242.50 = 14,242.50 : x
  2. Step 2: Convert to fraction form
    6,939/14,242.50 = 14,242.50/x
  3. Step 3: Cross multiply
    6,939x = 14,242.50 × 14,242.50
  4. Step 4: Simplify right side
    6,939x = 202,848,806.25
  5. Step 5: Solve for x
    x = 202,848,806.25/6,939
  6. Step 6: Final answer
    x = 29,233.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.