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Finding the Third Proportional to 4,074 and 8,389.50

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Solution

The third proportional to 4,074 and 8,389.50 is: 17,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,074 : 8,389.50 = 8,389.50 : x
  2. Step 2: Convert to fraction form
    4,074/8,389.50 = 8,389.50/x
  3. Step 3: Cross multiply
    4,074x = 8,389.50 × 8,389.50
  4. Step 4: Simplify right side
    4,074x = 70,383,710.25
  5. Step 5: Solve for x
    x = 70,383,710.25/4,074
  6. Step 6: Final answer
    x = 17,276.32

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.