Home / 8,627.91-12,940.38-2,784.57

Finding the Fourth Proportional to 8,627.91, 12,940.38 and 2,784.57

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Solution

The fourth proportional to 8,627.91, 12,940.38 and 2,784.57 is: 4,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.91 : 12,940.38 = 2,784.57 : x
  2. Step 2: Convert to fraction form
    8,627.91/12,940.38 = 2,784.57/x
  3. Step 3: Cross multiply
    8,627.91x = 12,940.38 × 2,784.57
  4. Step 4: Simplify right side
    8,627.91x = 36,033,393.94
  5. Step 5: Solve for x
    x = 36,033,393.94/8,627.91
  6. Step 6: Final answer
    x = 4,176.38

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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.