Home / 13,202.46-19,786.32-5,407.02

Finding the Fourth Proportional to 13,202.46, 19,786.32 and 5,407.02

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Solution

The fourth proportional to 13,202.46, 19,786.32 and 5,407.02 is: 8,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.46 : 19,786.32 = 5,407.02 : x
  2. Step 2: Convert to fraction form
    13,202.46/19,786.32 = 5,407.02/x
  3. Step 3: Cross multiply
    13,202.46x = 19,786.32 × 5,407.02
  4. Step 4: Simplify right side
    13,202.46x = 106,985,027.97
  5. Step 5: Solve for x
    x = 106,985,027.97/13,202.46
  6. Step 6: Final answer
    x = 8,103.42

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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.