Home / 13,733.31-20,601.21-3,872.70

Finding the Fourth Proportional to 13,733.31, 20,601.21 and 3,872.70

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Solution

The fourth proportional to 13,733.31, 20,601.21 and 3,872.70 is: 5,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.31 : 20,601.21 = 3,872.70 : x
  2. Step 2: Convert to fraction form
    13,733.31/20,601.21 = 3,872.70/x
  3. Step 3: Cross multiply
    13,733.31x = 20,601.21 × 3,872.70
  4. Step 4: Simplify right side
    13,733.31x = 79,782,305.97
  5. Step 5: Solve for x
    x = 79,782,305.97/13,733.31
  6. Step 6: Final answer
    x = 5,809.40

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1.5x scale

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.