Home / 13,190.43-19,786.67-3,830.60

Finding the Fourth Proportional to 13,190.43, 19,786.67 and 3,830.60

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Solution

The fourth proportional to 13,190.43, 19,786.67 and 3,830.60 is: 5,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.43 : 19,786.67 = 3,830.60 : x
  2. Step 2: Convert to fraction form
    13,190.43/19,786.67 = 3,830.60/x
  3. Step 3: Cross multiply
    13,190.43x = 19,786.67 × 3,830.60
  4. Step 4: Simplify right side
    13,190.43x = 75,794,817.90
  5. Step 5: Solve for x
    x = 75,794,817.90/13,190.43
  6. Step 6: Final answer
    x = 5,746.20

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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.