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Finding the Fourth Proportional to 13,713.46, 18,924.57 and 7,425.83

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Solution

The fourth proportional to 13,713.46, 18,924.57 and 7,425.83 is: 10,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.46 : 18,924.57 = 7,425.83 : x
  2. Step 2: Convert to fraction form
    13,713.46/18,924.57 = 7,425.83/x
  3. Step 3: Cross multiply
    13,713.46x = 18,924.57 × 7,425.83
  4. Step 4: Simplify right side
    13,713.46x = 140,530,639.64
  5. Step 5: Solve for x
    x = 140,530,639.64/13,713.46
  6. Step 6: Final answer
    x = 10,247.64

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