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Finding the Third Proportional to 6,988.50 and 10,284.75

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Solution

The third proportional to 6,988.50 and 10,284.75 is: 15,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.50 : 10,284.75 = 10,284.75 : x
  2. Step 2: Convert to fraction form
    6,988.50/10,284.75 = 10,284.75/x
  3. Step 3: Cross multiply
    6,988.50x = 10,284.75 × 10,284.75
  4. Step 4: Simplify right side
    6,988.50x = 105,776,082.56
  5. Step 5: Solve for x
    x = 105,776,082.56/6,988.50
  6. Step 6: Final answer
    x = 15,135.73

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.