Home / 8,486.39-12,731.94-3,554.85

Finding the Fourth Proportional to 8,486.39, 12,731.94 and 3,554.85

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Solution

The fourth proportional to 8,486.39, 12,731.94 and 3,554.85 is: 5,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.39 : 12,731.94 = 3,554.85 : x
  2. Step 2: Convert to fraction form
    8,486.39/12,731.94 = 3,554.85/x
  3. Step 3: Cross multiply
    8,486.39x = 12,731.94 × 3,554.85
  4. Step 4: Simplify right side
    8,486.39x = 45,260,136.91
  5. Step 5: Solve for x
    x = 45,260,136.91/8,486.39
  6. Step 6: Final answer
    x = 5,333.26

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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.