Home / 16,811.15-25,259.76-12,689.97

Finding the Fourth Proportional to 16,811.15, 25,259.76 and 12,689.97

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Solution

The fourth proportional to 16,811.15, 25,259.76 and 12,689.97 is: 19,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.15 : 25,259.76 = 12,689.97 : x
  2. Step 2: Convert to fraction form
    16,811.15/25,259.76 = 12,689.97/x
  3. Step 3: Cross multiply
    16,811.15x = 25,259.76 × 12,689.97
  4. Step 4: Simplify right side
    16,811.15x = 320,545,596.61
  5. Step 5: Solve for x
    x = 320,545,596.61/16,811.15
  6. Step 6: Final answer
    x = 19,067.44

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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.