Home / 13,982.52-20,977.42-5,217.50

Finding the Fourth Proportional to 13,982.52, 20,977.42 and 5,217.50

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Solution

The fourth proportional to 13,982.52, 20,977.42 and 5,217.50 is: 7,827.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.52 : 20,977.42 = 5,217.50 : x
  2. Step 2: Convert to fraction form
    13,982.52/20,977.42 = 5,217.50/x
  3. Step 3: Cross multiply
    13,982.52x = 20,977.42 × 5,217.50
  4. Step 4: Simplify right side
    13,982.52x = 109,449,688.85
  5. Step 5: Solve for x
    x = 109,449,688.85/13,982.52
  6. Step 6: Final answer
    x = 7,827.61

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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.