Home / 13,270.37-19,906.25-3,409.71

Finding the Fourth Proportional to 13,270.37, 19,906.25 and 3,409.71

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Solution

The fourth proportional to 13,270.37, 19,906.25 and 3,409.71 is: 5,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.37 : 19,906.25 = 3,409.71 : x
  2. Step 2: Convert to fraction form
    13,270.37/19,906.25 = 3,409.71/x
  3. Step 3: Cross multiply
    13,270.37x = 19,906.25 × 3,409.71
  4. Step 4: Simplify right side
    13,270.37x = 67,874,522.64
  5. Step 5: Solve for x
    x = 67,874,522.64/13,270.37
  6. Step 6: Final answer
    x = 5,114.74

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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.