Home / 8,688.78-13,033.16-3,493.44

Finding the Fourth Proportional to 8,688.78, 13,033.16 and 3,493.44

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Solution

The fourth proportional to 8,688.78, 13,033.16 and 3,493.44 is: 5,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.78 : 13,033.16 = 3,493.44 : x
  2. Step 2: Convert to fraction form
    8,688.78/13,033.16 = 3,493.44/x
  3. Step 3: Cross multiply
    8,688.78x = 13,033.16 × 3,493.44
  4. Step 4: Simplify right side
    8,688.78x = 45,530,562.47
  5. Step 5: Solve for x
    x = 45,530,562.47/8,688.78
  6. Step 6: Final answer
    x = 5,240.16

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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.