Home / 12,169.58-16,790.09-6,791.15

Finding the Fourth Proportional to 12,169.58, 16,790.09 and 6,791.15

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Solution

The fourth proportional to 12,169.58, 16,790.09 and 6,791.15 is: 9,369.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.58 : 16,790.09 = 6,791.15 : x
  2. Step 2: Convert to fraction form
    12,169.58/16,790.09 = 6,791.15/x
  3. Step 3: Cross multiply
    12,169.58x = 16,790.09 × 6,791.15
  4. Step 4: Simplify right side
    12,169.58x = 114,023,901.80
  5. Step 5: Solve for x
    x = 114,023,901.80/12,169.58
  6. Step 6: Final answer
    x = 9,369.59

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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.