Home / 11,777.72-17,672.63-6,511.75

Finding the Fourth Proportional to 11,777.72, 17,672.63 and 6,511.75

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Solution

The fourth proportional to 11,777.72, 17,672.63 and 6,511.75 is: 9,770.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.72 : 17,672.63 = 6,511.75 : x
  2. Step 2: Convert to fraction form
    11,777.72/17,672.63 = 6,511.75/x
  3. Step 3: Cross multiply
    11,777.72x = 17,672.63 × 6,511.75
  4. Step 4: Simplify right side
    11,777.72x = 115,079,671.66
  5. Step 5: Solve for x
    x = 115,079,671.66/11,777.72
  6. Step 6: Final answer
    x = 9,770.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.