Home / 11,025.80-16,498.20-8,109.80

Finding the Fourth Proportional to 11,025.80, 16,498.20 and 8,109.80

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Solution

The fourth proportional to 11,025.80, 16,498.20 and 8,109.80 is: 12,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,025.80 : 16,498.20 = 8,109.80 : x
  2. Step 2: Convert to fraction form
    11,025.80/16,498.20 = 8,109.80/x
  3. Step 3: Cross multiply
    11,025.80x = 16,498.20 × 8,109.80
  4. Step 4: Simplify right side
    11,025.80x = 133,797,102.36
  5. Step 5: Solve for x
    x = 133,797,102.36/11,025.80
  6. Step 6: Final answer
    x = 12,134.91

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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.