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Finding the Third Proportional to 6,990 and 10,011

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Solution

The third proportional to 6,990 and 10,011 is: 14,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990 : 10,011 = 10,011 : x
  2. Step 2: Convert to fraction form
    6,990/10,011 = 10,011/x
  3. Step 3: Cross multiply
    6,990x = 10,011 × 10,011
  4. Step 4: Simplify right side
    6,990x = 100,220,121
  5. Step 5: Solve for x
    x = 100,220,121/6,990
  6. Step 6: Final answer
    x = 14,337.64

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.