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Finding the Fourth Proportional to 8,500.22, 12,750.20 and 5,991.08

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Solution

The fourth proportional to 8,500.22, 12,750.20 and 5,991.08 is: 8,986.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.22 : 12,750.20 = 5,991.08 : x
  2. Step 2: Convert to fraction form
    8,500.22/12,750.20 = 5,991.08/x
  3. Step 3: Cross multiply
    8,500.22x = 12,750.20 × 5,991.08
  4. Step 4: Simplify right side
    8,500.22x = 76,387,468.22
  5. Step 5: Solve for x
    x = 76,387,468.22/8,500.22
  6. Step 6: Final answer
    x = 8,986.53

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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.