Home / 11,455.18-17,182.78-4,057.88

Finding the Fourth Proportional to 11,455.18, 17,182.78 and 4,057.88

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Solution

The fourth proportional to 11,455.18, 17,182.78 and 4,057.88 is: 6,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.18 : 17,182.78 = 4,057.88 : x
  2. Step 2: Convert to fraction form
    11,455.18/17,182.78 = 4,057.88/x
  3. Step 3: Cross multiply
    11,455.18x = 17,182.78 × 4,057.88
  4. Step 4: Simplify right side
    11,455.18x = 69,725,659.31
  5. Step 5: Solve for x
    x = 69,725,659.31/11,455.18
  6. Step 6: Final answer
    x = 6,086.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.