Home / 11,893.35-17,838.60-3,128.96

Finding the Fourth Proportional to 11,893.35, 17,838.60 and 3,128.96

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Solution

The fourth proportional to 11,893.35, 17,838.60 and 3,128.96 is: 4,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.35 : 17,838.60 = 3,128.96 : x
  2. Step 2: Convert to fraction form
    11,893.35/17,838.60 = 3,128.96/x
  3. Step 3: Cross multiply
    11,893.35x = 17,838.60 × 3,128.96
  4. Step 4: Simplify right side
    11,893.35x = 55,816,176.66
  5. Step 5: Solve for x
    x = 55,816,176.66/11,893.35
  6. Step 6: Final answer
    x = 4,693.06

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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.