Home / 13,812.12-20,712.92-4,449.74

Finding the Fourth Proportional to 13,812.12, 20,712.92 and 4,449.74

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Solution

The fourth proportional to 13,812.12, 20,712.92 and 4,449.74 is: 6,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.12 : 20,712.92 = 4,449.74 : x
  2. Step 2: Convert to fraction form
    13,812.12/20,712.92 = 4,449.74/x
  3. Step 3: Cross multiply
    13,812.12x = 20,712.92 × 4,449.74
  4. Step 4: Simplify right side
    13,812.12x = 92,166,982.83
  5. Step 5: Solve for x
    x = 92,166,982.83/13,812.12
  6. Step 6: Final answer
    x = 6,672.91

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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.