Home / 8,982.92-13,475.66-3,138.09

Finding the Fourth Proportional to 8,982.92, 13,475.66 and 3,138.09

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Solution

The fourth proportional to 8,982.92, 13,475.66 and 3,138.09 is: 4,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.92 : 13,475.66 = 3,138.09 : x
  2. Step 2: Convert to fraction form
    8,982.92/13,475.66 = 3,138.09/x
  3. Step 3: Cross multiply
    8,982.92x = 13,475.66 × 3,138.09
  4. Step 4: Simplify right side
    8,982.92x = 42,287,818.20
  5. Step 5: Solve for x
    x = 42,287,818.20/8,982.92
  6. Step 6: Final answer
    x = 4,707.58

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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.