Home / 8,111.44-12,167.16-3,183.40

Finding the Fourth Proportional to 8,111.44, 12,167.16 and 3,183.40

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Solution

The fourth proportional to 8,111.44, 12,167.16 and 3,183.40 is: 4,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.44 : 12,167.16 = 3,183.40 : x
  2. Step 2: Convert to fraction form
    8,111.44/12,167.16 = 3,183.40/x
  3. Step 3: Cross multiply
    8,111.44x = 12,167.16 × 3,183.40
  4. Step 4: Simplify right side
    8,111.44x = 38,732,937.14
  5. Step 5: Solve for x
    x = 38,732,937.14/8,111.44
  6. Step 6: Final answer
    x = 4,775.10

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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.