Home / 11,778.88-16,255.20-6,473.74

Finding the Fourth Proportional to 11,778.88, 16,255.20 and 6,473.74

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Solution

The fourth proportional to 11,778.88, 16,255.20 and 6,473.74 is: 8,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.88 : 16,255.20 = 6,473.74 : x
  2. Step 2: Convert to fraction form
    11,778.88/16,255.20 = 6,473.74/x
  3. Step 3: Cross multiply
    11,778.88x = 16,255.20 × 6,473.74
  4. Step 4: Simplify right side
    11,778.88x = 105,231,938.45
  5. Step 5: Solve for x
    x = 105,231,938.45/11,778.88
  6. Step 6: Final answer
    x = 8,933.95

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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.