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Finding the Fourth Proportional to 8,599.23, 12,899.18 and 8,131.73

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Solution

The fourth proportional to 8,599.23, 12,899.18 and 8,131.73 is: 12,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.23 : 12,899.18 = 8,131.73 : x
  2. Step 2: Convert to fraction form
    8,599.23/12,899.18 = 8,131.73/x
  3. Step 3: Cross multiply
    8,599.23x = 12,899.18 × 8,131.73
  4. Step 4: Simplify right side
    8,599.23x = 104,892,604.81
  5. Step 5: Solve for x
    x = 104,892,604.81/8,599.23
  6. Step 6: Final answer
    x = 12,197.91

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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.