Home / 14,100.80-21,149.60-3,713.36

Finding the Fourth Proportional to 14,100.80, 21,149.60 and 3,713.36

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Solution

The fourth proportional to 14,100.80, 21,149.60 and 3,713.36 is: 5,569.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.80 : 21,149.60 = 3,713.36 : x
  2. Step 2: Convert to fraction form
    14,100.80/21,149.60 = 3,713.36/x
  3. Step 3: Cross multiply
    14,100.80x = 21,149.60 × 3,713.36
  4. Step 4: Simplify right side
    14,100.80x = 78,536,078.66
  5. Step 5: Solve for x
    x = 78,536,078.66/14,100.80
  6. Step 6: Final answer
    x = 5,569.62

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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.