Home / 11,721.94-16,175.66-6,415.73

Finding the Fourth Proportional to 11,721.94, 16,175.66 and 6,415.73

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Solution

The fourth proportional to 11,721.94, 16,175.66 and 6,415.73 is: 8,853.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.94 : 16,175.66 = 6,415.73 : x
  2. Step 2: Convert to fraction form
    11,721.94/16,175.66 = 6,415.73/x
  3. Step 3: Cross multiply
    11,721.94x = 16,175.66 × 6,415.73
  4. Step 4: Simplify right side
    11,721.94x = 103,778,635.05
  5. Step 5: Solve for x
    x = 103,778,635.05/11,721.94
  6. Step 6: Final answer
    x = 8,853.37

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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.