Home / 8,428.94-12,639.24-2,584.14

Finding the Fourth Proportional to 8,428.94, 12,639.24 and 2,584.14

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Solution

The fourth proportional to 8,428.94, 12,639.24 and 2,584.14 is: 3,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.94 : 12,639.24 = 2,584.14 : x
  2. Step 2: Convert to fraction form
    8,428.94/12,639.24 = 2,584.14/x
  3. Step 3: Cross multiply
    8,428.94x = 12,639.24 × 2,584.14
  4. Step 4: Simplify right side
    8,428.94x = 32,661,565.65
  5. Step 5: Solve for x
    x = 32,661,565.65/8,428.94
  6. Step 6: Final answer
    x = 3,874.93

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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.