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Finding the Fourth Proportional to 13,399.47, 20,099.19 and 4,634.46

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Solution

The fourth proportional to 13,399.47, 20,099.19 and 4,634.46 is: 6,951.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.47 : 20,099.19 = 4,634.46 : x
  2. Step 2: Convert to fraction form
    13,399.47/20,099.19 = 4,634.46/x
  3. Step 3: Cross multiply
    13,399.47x = 20,099.19 × 4,634.46
  4. Step 4: Simplify right side
    13,399.47x = 93,148,892.09
  5. Step 5: Solve for x
    x = 93,148,892.09/13,399.47
  6. Step 6: Final answer
    x = 6,951.68

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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.