Home / 13,943.76-20,912.67-6,551.70

Finding the Fourth Proportional to 13,943.76, 20,912.67 and 6,551.70

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Solution

The fourth proportional to 13,943.76, 20,912.67 and 6,551.70 is: 9,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.76 : 20,912.67 = 6,551.70 : x
  2. Step 2: Convert to fraction form
    13,943.76/20,912.67 = 6,551.70/x
  3. Step 3: Cross multiply
    13,943.76x = 20,912.67 × 6,551.70
  4. Step 4: Simplify right side
    13,943.76x = 137,013,540.04
  5. Step 5: Solve for x
    x = 137,013,540.04/13,943.76
  6. Step 6: Final answer
    x = 9,826.15

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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.