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Finding the Fourth Proportional to 8,000.22, 11,993.85 and 3,615.42

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Solution

The fourth proportional to 8,000.22, 11,993.85 and 3,615.42 is: 5,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.22 : 11,993.85 = 3,615.42 : x
  2. Step 2: Convert to fraction form
    8,000.22/11,993.85 = 3,615.42/x
  3. Step 3: Cross multiply
    8,000.22x = 11,993.85 × 3,615.42
  4. Step 4: Simplify right side
    8,000.22x = 43,362,805.17
  5. Step 5: Solve for x
    x = 43,362,805.17/8,000.22
  6. Step 6: Final answer
    x = 5,420.20

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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.