Home / 8,108.10-12,160.94-3,181.14

Finding the Fourth Proportional to 8,108.10, 12,160.94 and 3,181.14

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Solution

The fourth proportional to 8,108.10, 12,160.94 and 3,181.14 is: 4,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.10 : 12,160.94 = 3,181.14 : x
  2. Step 2: Convert to fraction form
    8,108.10/12,160.94 = 3,181.14/x
  3. Step 3: Cross multiply
    8,108.10x = 12,160.94 × 3,181.14
  4. Step 4: Simplify right side
    8,108.10x = 38,685,636.77
  5. Step 5: Solve for x
    x = 38,685,636.77/8,108.10
  6. Step 6: Final answer
    x = 4,771.23

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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.