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Finding the Third Proportional to 8,474.63 and 15,855.75

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Solution

The third proportional to 8,474.63 and 15,855.75 is: 29,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.63 : 15,855.75 = 15,855.75 : x
  2. Step 2: Convert to fraction form
    8,474.63/15,855.75 = 15,855.75/x
  3. Step 3: Cross multiply
    8,474.63x = 15,855.75 × 15,855.75
  4. Step 4: Simplify right side
    8,474.63x = 251,404,808.06
  5. Step 5: Solve for x
    x = 251,404,808.06/8,474.63
  6. Step 6: Final answer
    x = 29,665.60

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.