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Finding the Fourth Proportional to 8,486.44, 12,728.22 and 2,329

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Solution

The fourth proportional to 8,486.44, 12,728.22 and 2,329 is: 3,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.44 : 12,728.22 = 2,329 : x
  2. Step 2: Convert to fraction form
    8,486.44/12,728.22 = 2,329/x
  3. Step 3: Cross multiply
    8,486.44x = 12,728.22 × 2,329
  4. Step 4: Simplify right side
    8,486.44x = 29,644,024.38
  5. Step 5: Solve for x
    x = 29,644,024.38/8,486.44
  6. Step 6: Final answer
    x = 3,493.10

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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.