Home / 12,167.11-16,790.39-6,861.93

Finding the Fourth Proportional to 12,167.11, 16,790.39 and 6,861.93

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Solution

The fourth proportional to 12,167.11, 16,790.39 and 6,861.93 is: 9,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.11 : 16,790.39 = 6,861.93 : x
  2. Step 2: Convert to fraction form
    12,167.11/16,790.39 = 6,861.93/x
  3. Step 3: Cross multiply
    12,167.11x = 16,790.39 × 6,861.93
  4. Step 4: Simplify right side
    12,167.11x = 115,214,480.85
  5. Step 5: Solve for x
    x = 115,214,480.85/12,167.11
  6. Step 6: Final answer
    x = 9,469.34

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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.