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Finding the Fourth Proportional to 11,765.88, 17,655.48 and 4,375.44

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Solution

The fourth proportional to 11,765.88, 17,655.48 and 4,375.44 is: 6,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.88 : 17,655.48 = 4,375.44 : x
  2. Step 2: Convert to fraction form
    11,765.88/17,655.48 = 4,375.44/x
  3. Step 3: Cross multiply
    11,765.88x = 17,655.48 × 4,375.44
  4. Step 4: Simplify right side
    11,765.88x = 77,250,493.41
  5. Step 5: Solve for x
    x = 77,250,493.41/11,765.88
  6. Step 6: Final answer
    x = 6,565.64

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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.