Home / 8,627.91-12,944.60-3,081.14

Finding the Fourth Proportional to 8,627.91, 12,944.60 and 3,081.14

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Solution

The fourth proportional to 8,627.91, 12,944.60 and 3,081.14 is: 4,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.91 : 12,944.60 = 3,081.14 : x
  2. Step 2: Convert to fraction form
    8,627.91/12,944.60 = 3,081.14/x
  3. Step 3: Cross multiply
    8,627.91x = 12,944.60 × 3,081.14
  4. Step 4: Simplify right side
    8,627.91x = 39,884,060.12
  5. Step 5: Solve for x
    x = 39,884,060.12/8,627.91
  6. Step 6: Final answer
    x = 4,622.68

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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.