Home / 8,291.44-12,443.82-4,131.28

Finding the Fourth Proportional to 8,291.44, 12,443.82 and 4,131.28

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Solution

The fourth proportional to 8,291.44, 12,443.82 and 4,131.28 is: 6,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.44 : 12,443.82 = 4,131.28 : x
  2. Step 2: Convert to fraction form
    8,291.44/12,443.82 = 4,131.28/x
  3. Step 3: Cross multiply
    8,291.44x = 12,443.82 × 4,131.28
  4. Step 4: Simplify right side
    8,291.44x = 51,408,904.69
  5. Step 5: Solve for x
    x = 51,408,904.69/8,291.44
  6. Step 6: Final answer
    x = 6,200.24

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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.