Home / 13,818.43-20,731.70-4,458.27

Finding the Fourth Proportional to 13,818.43, 20,731.70 and 4,458.27

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Solution

The fourth proportional to 13,818.43, 20,731.70 and 4,458.27 is: 6,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.43 : 20,731.70 = 4,458.27 : x
  2. Step 2: Convert to fraction form
    13,818.43/20,731.70 = 4,458.27/x
  3. Step 3: Cross multiply
    13,818.43x = 20,731.70 × 4,458.27
  4. Step 4: Simplify right side
    13,818.43x = 92,427,516.16
  5. Step 5: Solve for x
    x = 92,427,516.16/13,818.43
  6. Step 6: Final answer
    x = 6,688.71

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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.