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Finding the Third Proportional to 4,777.50 and 9,798

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Solution

The third proportional to 4,777.50 and 9,798 is: 20,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.50 : 9,798 = 9,798 : x
  2. Step 2: Convert to fraction form
    4,777.50/9,798 = 9,798/x
  3. Step 3: Cross multiply
    4,777.50x = 9,798 × 9,798
  4. Step 4: Simplify right side
    4,777.50x = 96,000,804
  5. Step 5: Solve for x
    x = 96,000,804/4,777.50
  6. Step 6: Final answer
    x = 20,094.36

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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.