Home / 13,500.72-20,251.08-4,266

Finding the Fourth Proportional to 13,500.72, 20,251.08 and 4,266

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Solution

The fourth proportional to 13,500.72, 20,251.08 and 4,266 is: 6,399

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500.72 : 20,251.08 = 4,266 : x
  2. Step 2: Convert to fraction form
    13,500.72/20,251.08 = 4,266/x
  3. Step 3: Cross multiply
    13,500.72x = 20,251.08 × 4,266
  4. Step 4: Simplify right side
    13,500.72x = 86,391,107.28
  5. Step 5: Solve for x
    x = 86,391,107.28/13,500.72
  6. Step 6: Final answer
    x = 6,399

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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.