Home / 11,902.43-17,852.28-3,138.03

Finding the Fourth Proportional to 11,902.43, 17,852.28 and 3,138.03

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Solution

The fourth proportional to 11,902.43, 17,852.28 and 3,138.03 is: 4,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.43 : 17,852.28 = 3,138.03 : x
  2. Step 2: Convert to fraction form
    11,902.43/17,852.28 = 3,138.03/x
  3. Step 3: Cross multiply
    11,902.43x = 17,852.28 × 3,138.03
  4. Step 4: Simplify right side
    11,902.43x = 56,020,990.21
  5. Step 5: Solve for x
    x = 56,020,990.21/11,902.43
  6. Step 6: Final answer
    x = 4,706.69

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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.