Home / 11,936.43-16,471.35-6,630.78

Finding the Fourth Proportional to 11,936.43, 16,471.35 and 6,630.78

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Solution

The fourth proportional to 11,936.43, 16,471.35 and 6,630.78 is: 9,149.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936.43 : 16,471.35 = 6,630.78 : x
  2. Step 2: Convert to fraction form
    11,936.43/16,471.35 = 6,630.78/x
  3. Step 3: Cross multiply
    11,936.43x = 16,471.35 × 6,630.78
  4. Step 4: Simplify right side
    11,936.43x = 109,217,898.15
  5. Step 5: Solve for x
    x = 109,217,898.15/11,936.43
  6. Step 6: Final answer
    x = 9,149.96

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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.