Home / 13,725.92-20,588.88-5,516

Finding the Fourth Proportional to 13,725.92, 20,588.88 and 5,516

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Solution

The fourth proportional to 13,725.92, 20,588.88 and 5,516 is: 8,274

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.92 : 20,588.88 = 5,516 : x
  2. Step 2: Convert to fraction form
    13,725.92/20,588.88 = 5,516/x
  3. Step 3: Cross multiply
    13,725.92x = 20,588.88 × 5,516
  4. Step 4: Simplify right side
    13,725.92x = 113,568,262.08
  5. Step 5: Solve for x
    x = 113,568,262.08/13,725.92
  6. Step 6: Final answer
    x = 8,274

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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.