Home / 12,241.20-16,883.46-8,256

Finding the Fourth Proportional to 12,241.20, 16,883.46 and 8,256

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Solution

The fourth proportional to 12,241.20, 16,883.46 and 8,256 is: 11,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.20 : 16,883.46 = 8,256 : x
  2. Step 2: Convert to fraction form
    12,241.20/16,883.46 = 8,256/x
  3. Step 3: Cross multiply
    12,241.20x = 16,883.46 × 8,256
  4. Step 4: Simplify right side
    12,241.20x = 139,389,845.76
  5. Step 5: Solve for x
    x = 139,389,845.76/12,241.20
  6. Step 6: Final answer
    x = 11,386.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.