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Finding the Fourth Proportional to 13,951.65, 20,922.26 and 5,627.13

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Solution

The fourth proportional to 13,951.65, 20,922.26 and 5,627.13 is: 8,438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.65 : 20,922.26 = 5,627.13 : x
  2. Step 2: Convert to fraction form
    13,951.65/20,922.26 = 5,627.13/x
  3. Step 3: Cross multiply
    13,951.65x = 20,922.26 × 5,627.13
  4. Step 4: Simplify right side
    13,951.65x = 117,732,248.78
  5. Step 5: Solve for x
    x = 117,732,248.78/13,951.65
  6. Step 6: Final answer
    x = 8,438.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.