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Finding the Fourth Proportional to 11,917.08, 16,438.04 and 7,673.68

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Solution

The fourth proportional to 11,917.08, 16,438.04 and 7,673.68 is: 10,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.08 : 16,438.04 = 7,673.68 : x
  2. Step 2: Convert to fraction form
    11,917.08/16,438.04 = 7,673.68/x
  3. Step 3: Cross multiply
    11,917.08x = 16,438.04 × 7,673.68
  4. Step 4: Simplify right side
    11,917.08x = 126,140,258.79
  5. Step 5: Solve for x
    x = 126,140,258.79/11,917.08
  6. Step 6: Final answer
    x = 10,584.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.