Home / 11,078.31-15,288.11-6,042.49

Finding the Fourth Proportional to 11,078.31, 15,288.11 and 6,042.49

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Solution

The fourth proportional to 11,078.31, 15,288.11 and 6,042.49 is: 8,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.31 : 15,288.11 = 6,042.49 : x
  2. Step 2: Convert to fraction form
    11,078.31/15,288.11 = 6,042.49/x
  3. Step 3: Cross multiply
    11,078.31x = 15,288.11 × 6,042.49
  4. Step 4: Simplify right side
    11,078.31x = 92,378,251.79
  5. Step 5: Solve for x
    x = 92,378,251.79/11,078.31
  6. Step 6: Final answer
    x = 8,338.66

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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.