Home / 11,778.92-16,265.54-8,789.56

Finding the Fourth Proportional to 11,778.92, 16,265.54 and 8,789.56

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Solution

The fourth proportional to 11,778.92, 16,265.54 and 8,789.56 is: 12,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.92 : 16,265.54 = 8,789.56 : x
  2. Step 2: Convert to fraction form
    11,778.92/16,265.54 = 8,789.56/x
  3. Step 3: Cross multiply
    11,778.92x = 16,265.54 × 8,789.56
  4. Step 4: Simplify right side
    11,778.92x = 142,966,939.76
  5. Step 5: Solve for x
    x = 142,966,939.76/11,778.92
  6. Step 6: Final answer
    x = 12,137.53

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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.