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Finding the Third Proportional to 8,479.42 and 12,465.09

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Solution

The third proportional to 8,479.42 and 12,465.09 is: 18,324.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.42 : 12,465.09 = 12,465.09 : x
  2. Step 2: Convert to fraction form
    8,479.42/12,465.09 = 12,465.09/x
  3. Step 3: Cross multiply
    8,479.42x = 12,465.09 × 12,465.09
  4. Step 4: Simplify right side
    8,479.42x = 155,378,416.12
  5. Step 5: Solve for x
    x = 155,378,416.12/8,479.42
  6. Step 6: Final answer
    x = 18,324.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.