Home / 8,287.91-12,431.45-3,093.38

Finding the Fourth Proportional to 8,287.91, 12,431.45 and 3,093.38

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Solution

The fourth proportional to 8,287.91, 12,431.45 and 3,093.38 is: 4,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.91 : 12,431.45 = 3,093.38 : x
  2. Step 2: Convert to fraction form
    8,287.91/12,431.45 = 3,093.38/x
  3. Step 3: Cross multiply
    8,287.91x = 12,431.45 × 3,093.38
  4. Step 4: Simplify right side
    8,287.91x = 38,455,121.18
  5. Step 5: Solve for x
    x = 38,455,121.18/8,287.91
  6. Step 6: Final answer
    x = 4,639.91

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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.