Home / 11,138.56-16,707.84-2,818.62

Finding the Fourth Proportional to 11,138.56, 16,707.84 and 2,818.62

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Solution

The fourth proportional to 11,138.56, 16,707.84 and 2,818.62 is: 4,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.56 : 16,707.84 = 2,818.62 : x
  2. Step 2: Convert to fraction form
    11,138.56/16,707.84 = 2,818.62/x
  3. Step 3: Cross multiply
    11,138.56x = 16,707.84 × 2,818.62
  4. Step 4: Simplify right side
    11,138.56x = 47,093,112.18
  5. Step 5: Solve for x
    x = 47,093,112.18/11,138.56
  6. Step 6: Final answer
    x = 4,227.93

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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.