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Finding the Fourth Proportional to 13,558, 20,337 and 4,324

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Solution

The fourth proportional to 13,558, 20,337 and 4,324 is: 6,486

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558 : 20,337 = 4,324 : x
  2. Step 2: Convert to fraction form
    13,558/20,337 = 4,324/x
  3. Step 3: Cross multiply
    13,558x = 20,337 × 4,324
  4. Step 4: Simplify right side
    13,558x = 87,937,188
  5. Step 5: Solve for x
    x = 87,937,188/13,558
  6. Step 6: Final answer
    x = 6,486

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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.