Home / 12,651.44-18,977.22-5,255.90

Finding the Fourth Proportional to 12,651.44, 18,977.22 and 5,255.90

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Solution

The fourth proportional to 12,651.44, 18,977.22 and 5,255.90 is: 7,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.44 : 18,977.22 = 5,255.90 : x
  2. Step 2: Convert to fraction form
    12,651.44/18,977.22 = 5,255.90/x
  3. Step 3: Cross multiply
    12,651.44x = 18,977.22 × 5,255.90
  4. Step 4: Simplify right side
    12,651.44x = 99,742,398.33
  5. Step 5: Solve for x
    x = 99,742,398.33/12,651.44
  6. Step 6: Final answer
    x = 7,883.88

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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.