Home / 8,989.92-13,479.56-3,443.68

Finding the Fourth Proportional to 8,989.92, 13,479.56 and 3,443.68

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Solution

The fourth proportional to 8,989.92, 13,479.56 and 3,443.68 is: 5,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.92 : 13,479.56 = 3,443.68 : x
  2. Step 2: Convert to fraction form
    8,989.92/13,479.56 = 3,443.68/x
  3. Step 3: Cross multiply
    8,989.92x = 13,479.56 × 3,443.68
  4. Step 4: Simplify right side
    8,989.92x = 46,419,291.18
  5. Step 5: Solve for x
    x = 46,419,291.18/8,989.92
  6. Step 6: Final answer
    x = 5,163.48

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1.5x scale

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.