Home / 13,579.92-20,361.69-8,894.34

Finding the Fourth Proportional to 13,579.92, 20,361.69 and 8,894.34

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Solution

The fourth proportional to 13,579.92, 20,361.69 and 8,894.34 is: 13,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.92 : 20,361.69 = 8,894.34 : x
  2. Step 2: Convert to fraction form
    13,579.92/20,361.69 = 8,894.34/x
  3. Step 3: Cross multiply
    13,579.92x = 20,361.69 × 8,894.34
  4. Step 4: Simplify right side
    13,579.92x = 181,103,793.83
  5. Step 5: Solve for x
    x = 181,103,793.83/13,579.92
  6. Step 6: Final answer
    x = 13,336.15

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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.