Home / 11,778.92-16,255.16-6,474.04

Finding the Fourth Proportional to 11,778.92, 16,255.16 and 6,474.04

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Solution

The fourth proportional to 11,778.92, 16,255.16 and 6,474.04 is: 8,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.92 : 16,255.16 = 6,474.04 : x
  2. Step 2: Convert to fraction form
    11,778.92/16,255.16 = 6,474.04/x
  3. Step 3: Cross multiply
    11,778.92x = 16,255.16 × 6,474.04
  4. Step 4: Simplify right side
    11,778.92x = 105,236,556.05
  5. Step 5: Solve for x
    x = 105,236,556.05/11,778.92
  6. Step 6: Final answer
    x = 8,934.31

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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.