Home / 14,120.46-21,182.97-4,761.31

Finding the Fourth Proportional to 14,120.46, 21,182.97 and 4,761.31

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Solution

The fourth proportional to 14,120.46, 21,182.97 and 4,761.31 is: 7,142.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.46 : 21,182.97 = 4,761.31 : x
  2. Step 2: Convert to fraction form
    14,120.46/21,182.97 = 4,761.31/x
  3. Step 3: Cross multiply
    14,120.46x = 21,182.97 × 4,761.31
  4. Step 4: Simplify right side
    14,120.46x = 100,858,686.89
  5. Step 5: Solve for x
    x = 100,858,686.89/14,120.46
  6. Step 6: Final answer
    x = 7,142.73

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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.