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Finding the Fourth Proportional to 13,366.26, 20,045.72 and 7,435.84

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Solution

The fourth proportional to 13,366.26, 20,045.72 and 7,435.84 is: 11,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.26 : 20,045.72 = 7,435.84 : x
  2. Step 2: Convert to fraction form
    13,366.26/20,045.72 = 7,435.84/x
  3. Step 3: Cross multiply
    13,366.26x = 20,045.72 × 7,435.84
  4. Step 4: Simplify right side
    13,366.26x = 149,056,766.60
  5. Step 5: Solve for x
    x = 149,056,766.60/13,366.26
  6. Step 6: Final answer
    x = 11,151.72

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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.