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Finding the Third Proportional to 5,149 and 7,803

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Solution

The third proportional to 5,149 and 7,803 is: 11,824.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149 : 7,803 = 7,803 : x
  2. Step 2: Convert to fraction form
    5,149/7,803 = 7,803/x
  3. Step 3: Cross multiply
    5,149x = 7,803 × 7,803
  4. Step 4: Simplify right side
    5,149x = 60,886,809
  5. Step 5: Solve for x
    x = 60,886,809/5,149
  6. Step 6: Final answer
    x = 11,824.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.