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Finding the Third Proportional to 13,410 and 18,859.50

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Solution

The third proportional to 13,410 and 18,859.50 is: 26,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410 : 18,859.50 = 18,859.50 : x
  2. Step 2: Convert to fraction form
    13,410/18,859.50 = 18,859.50/x
  3. Step 3: Cross multiply
    13,410x = 18,859.50 × 18,859.50
  4. Step 4: Simplify right side
    13,410x = 355,680,740.25
  5. Step 5: Solve for x
    x = 355,680,740.25/13,410
  6. Step 6: Final answer
    x = 26,523.55

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.