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Finding the Fourth Proportional to 14,614.62, 20,163.33 and 8,240.41

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Solution

The fourth proportional to 14,614.62, 20,163.33 and 8,240.41 is: 11,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.62 : 20,163.33 = 8,240.41 : x
  2. Step 2: Convert to fraction form
    14,614.62/20,163.33 = 8,240.41/x
  3. Step 3: Cross multiply
    14,614.62x = 20,163.33 × 8,240.41
  4. Step 4: Simplify right side
    14,614.62x = 166,153,984.75
  5. Step 5: Solve for x
    x = 166,153,984.75/14,614.62
  6. Step 6: Final answer
    x = 11,369.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.