Home / 11,118.40-16,676.16-4,192

Finding the Fourth Proportional to 11,118.40, 16,676.16 and 4,192

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Solution

The fourth proportional to 11,118.40, 16,676.16 and 4,192 is: 6,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.40 : 16,676.16 = 4,192 : x
  2. Step 2: Convert to fraction form
    11,118.40/16,676.16 = 4,192/x
  3. Step 3: Cross multiply
    11,118.40x = 16,676.16 × 4,192
  4. Step 4: Simplify right side
    11,118.40x = 69,906,462.72
  5. Step 5: Solve for x
    x = 69,906,462.72/11,118.40
  6. Step 6: Final answer
    x = 6,287.46

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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.