Home / 13,220.24-18,243.94-7,252.04

Finding the Fourth Proportional to 13,220.24, 18,243.94 and 7,252.04

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Solution

The fourth proportional to 13,220.24, 18,243.94 and 7,252.04 is: 10,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.24 : 18,243.94 = 7,252.04 : x
  2. Step 2: Convert to fraction form
    13,220.24/18,243.94 = 7,252.04/x
  3. Step 3: Cross multiply
    13,220.24x = 18,243.94 × 7,252.04
  4. Step 4: Simplify right side
    13,220.24x = 132,305,773.80
  5. Step 5: Solve for x
    x = 132,305,773.80/13,220.24
  6. Step 6: Final answer
    x = 10,007.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.