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Finding the Fourth Proportional to 8,000.72, 11,992.87 and 3,069.03

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Solution

The fourth proportional to 8,000.72, 11,992.87 and 3,069.03 is: 4,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.72 : 11,992.87 = 3,069.03 : x
  2. Step 2: Convert to fraction form
    8,000.72/11,992.87 = 3,069.03/x
  3. Step 3: Cross multiply
    8,000.72x = 11,992.87 × 3,069.03
  4. Step 4: Simplify right side
    8,000.72x = 36,806,477.82
  5. Step 5: Solve for x
    x = 36,806,477.82/8,000.72
  6. Step 6: Final answer
    x = 4,600.40

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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.