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Finding the Fourth Proportional to 12,494.12, 18,650.03 and 10,917.68

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Solution

The fourth proportional to 12,494.12, 18,650.03 and 10,917.68 is: 16,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.12 : 18,650.03 = 10,917.68 : x
  2. Step 2: Convert to fraction form
    12,494.12/18,650.03 = 10,917.68/x
  3. Step 3: Cross multiply
    12,494.12x = 18,650.03 × 10,917.68
  4. Step 4: Simplify right side
    12,494.12x = 203,614,911.69
  5. Step 5: Solve for x
    x = 203,614,911.69/12,494.12
  6. Step 6: Final answer
    x = 16,296.86

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1.5x scale

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.