Home / 12,276.06-16,940.97-6,687.06

Finding the Fourth Proportional to 12,276.06, 16,940.97 and 6,687.06

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Solution

The fourth proportional to 12,276.06, 16,940.97 and 6,687.06 is: 9,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.06 : 16,940.97 = 6,687.06 : x
  2. Step 2: Convert to fraction form
    12,276.06/16,940.97 = 6,687.06/x
  3. Step 3: Cross multiply
    12,276.06x = 16,940.97 × 6,687.06
  4. Step 4: Simplify right side
    12,276.06x = 113,285,282.85
  5. Step 5: Solve for x
    x = 113,285,282.85/12,276.06
  6. Step 6: Final answer
    x = 9,228.15

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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.