Home / 13,818.33-20,731.52-4,458.15

Finding the Fourth Proportional to 13,818.33, 20,731.52 and 4,458.15

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Solution

The fourth proportional to 13,818.33, 20,731.52 and 4,458.15 is: 6,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.33 : 20,731.52 = 4,458.15 : x
  2. Step 2: Convert to fraction form
    13,818.33/20,731.52 = 4,458.15/x
  3. Step 3: Cross multiply
    13,818.33x = 20,731.52 × 4,458.15
  4. Step 4: Simplify right side
    13,818.33x = 92,424,237.03
  5. Step 5: Solve for x
    x = 92,424,237.03/13,818.33
  6. Step 6: Final answer
    x = 6,688.52

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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.