Home / 11,900.62-17,848.90-3,135.61

Finding the Fourth Proportional to 11,900.62, 17,848.90 and 3,135.61

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Solution

The fourth proportional to 11,900.62, 17,848.90 and 3,135.61 is: 4,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.62 : 17,848.90 = 3,135.61 : x
  2. Step 2: Convert to fraction form
    11,900.62/17,848.90 = 3,135.61/x
  3. Step 3: Cross multiply
    11,900.62x = 17,848.90 × 3,135.61
  4. Step 4: Simplify right side
    11,900.62x = 55,967,189.33
  5. Step 5: Solve for x
    x = 55,967,189.33/11,900.62
  6. Step 6: Final answer
    x = 4,702.88

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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.