Home / 12,204.24-16,835.66-7,720.44

Finding the Fourth Proportional to 12,204.24, 16,835.66 and 7,720.44

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Solution

The fourth proportional to 12,204.24, 16,835.66 and 7,720.44 is: 10,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.24 : 16,835.66 = 7,720.44 : x
  2. Step 2: Convert to fraction form
    12,204.24/16,835.66 = 7,720.44/x
  3. Step 3: Cross multiply
    12,204.24x = 16,835.66 × 7,720.44
  4. Step 4: Simplify right side
    12,204.24x = 129,978,702.89
  5. Step 5: Solve for x
    x = 129,978,702.89/12,204.24
  6. Step 6: Final answer
    x = 10,650.29

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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.