Home / 11,721.44-16,174.97-6,415.23

Finding the Fourth Proportional to 11,721.44, 16,174.97 and 6,415.23

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Solution

The fourth proportional to 11,721.44, 16,174.97 and 6,415.23 is: 8,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.44 : 16,174.97 = 6,415.23 : x
  2. Step 2: Convert to fraction form
    11,721.44/16,174.97 = 6,415.23/x
  3. Step 3: Cross multiply
    11,721.44x = 16,174.97 × 6,415.23
  4. Step 4: Simplify right side
    11,721.44x = 103,766,120.72
  5. Step 5: Solve for x
    x = 103,766,120.72/11,721.44
  6. Step 6: Final answer
    x = 8,852.68

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1.5x scale

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.