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Finding the Third Proportional to 12,663.84 and 18,900.84

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Solution

The third proportional to 12,663.84 and 18,900.84 is: 28,209.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.84 : 18,900.84 = 18,900.84 : x
  2. Step 2: Convert to fraction form
    12,663.84/18,900.84 = 18,900.84/x
  3. Step 3: Cross multiply
    12,663.84x = 18,900.84 × 18,900.84
  4. Step 4: Simplify right side
    12,663.84x = 357,241,894.46
  5. Step 5: Solve for x
    x = 357,241,894.46/12,663.84
  6. Step 6: Final answer
    x = 28,209.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.