Home / 12,288.62-16,951.82-8,311.08

Finding the Fourth Proportional to 12,288.62, 16,951.82 and 8,311.08

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Solution

The fourth proportional to 12,288.62, 16,951.82 and 8,311.08 is: 11,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.62 : 16,951.82 = 8,311.08 : x
  2. Step 2: Convert to fraction form
    12,288.62/16,951.82 = 8,311.08/x
  3. Step 3: Cross multiply
    12,288.62x = 16,951.82 × 8,311.08
  4. Step 4: Simplify right side
    12,288.62x = 140,887,932.17
  5. Step 5: Solve for x
    x = 140,887,932.17/12,288.62
  6. Step 6: Final answer
    x = 11,464.91

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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.