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Finding the Fourth Proportional to 13,614.33, 20,419.02 and 3,751.50

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Solution

The fourth proportional to 13,614.33, 20,419.02 and 3,751.50 is: 5,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.33 : 20,419.02 = 3,751.50 : x
  2. Step 2: Convert to fraction form
    13,614.33/20,419.02 = 3,751.50/x
  3. Step 3: Cross multiply
    13,614.33x = 20,419.02 × 3,751.50
  4. Step 4: Simplify right side
    13,614.33x = 76,601,953.53
  5. Step 5: Solve for x
    x = 76,601,953.53/13,614.33
  6. Step 6: Final answer
    x = 5,626.57

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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.