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Finding the Fourth Proportional to 11,859.29, 16,367.81 and 8,029.19

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Solution

The fourth proportional to 11,859.29, 16,367.81 and 8,029.19 is: 11,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.29 : 16,367.81 = 8,029.19 : x
  2. Step 2: Convert to fraction form
    11,859.29/16,367.81 = 8,029.19/x
  3. Step 3: Cross multiply
    11,859.29x = 16,367.81 × 8,029.19
  4. Step 4: Simplify right side
    11,859.29x = 131,420,134.39
  5. Step 5: Solve for x
    x = 131,420,134.39/11,859.29
  6. Step 6: Final answer
    x = 11,081.62

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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.