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Finding the Third Proportional to 12,619.50 and 19,104

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Solution

The third proportional to 12,619.50 and 19,104 is: 28,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.50 : 19,104 = 19,104 : x
  2. Step 2: Convert to fraction form
    12,619.50/19,104 = 19,104/x
  3. Step 3: Cross multiply
    12,619.50x = 19,104 × 19,104
  4. Step 4: Simplify right side
    12,619.50x = 364,962,816
  5. Step 5: Solve for x
    x = 364,962,816/12,619.50
  6. Step 6: Final answer
    x = 28,920.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.