Home / 13,202.76-19,811.43-5,409.75

Finding the Fourth Proportional to 13,202.76, 19,811.43 and 5,409.75

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Solution

The fourth proportional to 13,202.76, 19,811.43 and 5,409.75 is: 8,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.76 : 19,811.43 = 5,409.75 : x
  2. Step 2: Convert to fraction form
    13,202.76/19,811.43 = 5,409.75/x
  3. Step 3: Cross multiply
    13,202.76x = 19,811.43 × 5,409.75
  4. Step 4: Simplify right side
    13,202.76x = 107,174,883.44
  5. Step 5: Solve for x
    x = 107,174,883.44/13,202.76
  6. Step 6: Final answer
    x = 8,117.61

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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.