Home / 13,772.97-20,656.35-3,912.03

Finding the Fourth Proportional to 13,772.97, 20,656.35 and 3,912.03

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Solution

The fourth proportional to 13,772.97, 20,656.35 and 3,912.03 is: 5,867.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.97 : 20,656.35 = 3,912.03 : x
  2. Step 2: Convert to fraction form
    13,772.97/20,656.35 = 3,912.03/x
  3. Step 3: Cross multiply
    13,772.97x = 20,656.35 × 3,912.03
  4. Step 4: Simplify right side
    13,772.97x = 80,808,260.89
  5. Step 5: Solve for x
    x = 80,808,260.89/13,772.97
  6. Step 6: Final answer
    x = 5,867.16

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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.