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Finding the Fourth Proportional to 11,850.58, 17,781.06 and 5,615.05

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Solution

The fourth proportional to 11,850.58, 17,781.06 and 5,615.05 is: 8,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,850.58 : 17,781.06 = 5,615.05 : x
  2. Step 2: Convert to fraction form
    11,850.58/17,781.06 = 5,615.05/x
  3. Step 3: Cross multiply
    11,850.58x = 17,781.06 × 5,615.05
  4. Step 4: Simplify right side
    11,850.58x = 99,841,540.95
  5. Step 5: Solve for x
    x = 99,841,540.95/11,850.58
  6. Step 6: Final answer
    x = 8,425.03

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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.