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Finding the Fourth Proportional to 12,494.96, 18,747.69 and 11,443.79

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Solution

The fourth proportional to 12,494.96, 18,747.69 and 11,443.79 is: 17,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.96 : 18,747.69 = 11,443.79 : x
  2. Step 2: Convert to fraction form
    12,494.96/18,747.69 = 11,443.79/x
  3. Step 3: Cross multiply
    12,494.96x = 18,747.69 × 11,443.79
  4. Step 4: Simplify right side
    12,494.96x = 214,544,627.35
  5. Step 5: Solve for x
    x = 214,544,627.35/12,494.96
  6. Step 6: Final answer
    x = 17,170.49

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1.5x scale

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.