Home / 11,761.89-16,231.34-6,384.44

Finding the Fourth Proportional to 11,761.89, 16,231.34 and 6,384.44

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Solution

The fourth proportional to 11,761.89, 16,231.34 and 6,384.44 is: 8,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.89 : 16,231.34 = 6,384.44 : x
  2. Step 2: Convert to fraction form
    11,761.89/16,231.34 = 6,384.44/x
  3. Step 3: Cross multiply
    11,761.89x = 16,231.34 × 6,384.44
  4. Step 4: Simplify right side
    11,761.89x = 103,627,951.15
  5. Step 5: Solve for x
    x = 103,627,951.15/11,761.89
  6. Step 6: Final answer
    x = 8,810.48

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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.