Home / 13,078.92-18,039.78-8,601.24

Finding the Fourth Proportional to 13,078.92, 18,039.78 and 8,601.24

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Solution

The fourth proportional to 13,078.92, 18,039.78 and 8,601.24 is: 11,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.92 : 18,039.78 = 8,601.24 : x
  2. Step 2: Convert to fraction form
    13,078.92/18,039.78 = 8,601.24/x
  3. Step 3: Cross multiply
    13,078.92x = 18,039.78 × 8,601.24
  4. Step 4: Simplify right side
    13,078.92x = 155,164,477.33
  5. Step 5: Solve for x
    x = 155,164,477.33/13,078.92
  6. Step 6: Final answer
    x = 11,863.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.