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Finding the Third Proportional to 8,612.58 and 18,455.20

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Solution

The third proportional to 8,612.58 and 18,455.20 is: 39,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.58 : 18,455.20 = 18,455.20 : x
  2. Step 2: Convert to fraction form
    8,612.58/18,455.20 = 18,455.20/x
  3. Step 3: Cross multiply
    8,612.58x = 18,455.20 × 18,455.20
  4. Step 4: Simplify right side
    8,612.58x = 340,594,522.39
  5. Step 5: Solve for x
    x = 340,594,522.39/8,612.58
  6. Step 6: Final answer
    x = 39,546.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.