Home / 12,169.39-16,789.82-6,790.95

Finding the Fourth Proportional to 12,169.39, 16,789.82 and 6,790.95

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Solution

The fourth proportional to 12,169.39, 16,789.82 and 6,790.95 is: 9,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.39 : 16,789.82 = 6,790.95 : x
  2. Step 2: Convert to fraction form
    12,169.39/16,789.82 = 6,790.95/x
  3. Step 3: Cross multiply
    12,169.39x = 16,789.82 × 6,790.95
  4. Step 4: Simplify right side
    12,169.39x = 114,018,845.11
  5. Step 5: Solve for x
    x = 114,018,845.11/12,169.39
  6. Step 6: Final answer
    x = 9,369.32

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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.