Home / 11,205.10-16,785.78-6,811.66

Finding the Fourth Proportional to 11,205.10, 16,785.78 and 6,811.66

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Solution

The fourth proportional to 11,205.10, 16,785.78 and 6,811.66 is: 10,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.10 : 16,785.78 = 6,811.66 : x
  2. Step 2: Convert to fraction form
    11,205.10/16,785.78 = 6,811.66/x
  3. Step 3: Cross multiply
    11,205.10x = 16,785.78 × 6,811.66
  4. Step 4: Simplify right side
    11,205.10x = 114,339,026.19
  5. Step 5: Solve for x
    x = 114,339,026.19/11,205.10
  6. Step 6: Final answer
    x = 10,204.20

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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.