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Finding the Third Proportional to 3,618.84 and 7,776.84

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Solution

The third proportional to 3,618.84 and 7,776.84 is: 16,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.84 : 7,776.84 = 7,776.84 : x
  2. Step 2: Convert to fraction form
    3,618.84/7,776.84 = 7,776.84/x
  3. Step 3: Cross multiply
    3,618.84x = 7,776.84 × 7,776.84
  4. Step 4: Simplify right side
    3,618.84x = 60,479,298.71
  5. Step 5: Solve for x
    x = 60,479,298.71/3,618.84
  6. Step 6: Final answer
    x = 16,712.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.