Home / 15,578.60-23,371.62-5,190.44

Finding the Fourth Proportional to 15,578.60, 23,371.62 and 5,190.44

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Solution

The fourth proportional to 15,578.60, 23,371.62 and 5,190.44 is: 7,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.60 : 23,371.62 = 5,190.44 : x
  2. Step 2: Convert to fraction form
    15,578.60/23,371.62 = 5,190.44/x
  3. Step 3: Cross multiply
    15,578.60x = 23,371.62 × 5,190.44
  4. Step 4: Simplify right side
    15,578.60x = 121,308,991.31
  5. Step 5: Solve for x
    x = 121,308,991.31/15,578.60
  6. Step 6: Final answer
    x = 7,786.90

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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.