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Finding the Third Proportional to 5,458.13 and 8,214.38

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Solution

The third proportional to 5,458.13 and 8,214.38 is: 12,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.13 : 8,214.38 = 8,214.38 : x
  2. Step 2: Convert to fraction form
    5,458.13/8,214.38 = 8,214.38/x
  3. Step 3: Cross multiply
    5,458.13x = 8,214.38 × 8,214.38
  4. Step 4: Simplify right side
    5,458.13x = 67,475,956.64
  5. Step 5: Solve for x
    x = 67,475,956.64/5,458.13
  6. Step 6: Final answer
    x = 12,362.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.