Home / 11,160.38-15,400.83-6,124.61

Finding the Fourth Proportional to 11,160.38, 15,400.83 and 6,124.61

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Solution

The fourth proportional to 11,160.38, 15,400.83 and 6,124.61 is: 8,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.38 : 15,400.83 = 6,124.61 : x
  2. Step 2: Convert to fraction form
    11,160.38/15,400.83 = 6,124.61/x
  3. Step 3: Cross multiply
    11,160.38x = 15,400.83 × 6,124.61
  4. Step 4: Simplify right side
    11,160.38x = 94,324,138.90
  5. Step 5: Solve for x
    x = 94,324,138.90/11,160.38
  6. Step 6: Final answer
    x = 8,451.69

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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.