Home / 8,627.56-12,940.26-3,429.52

Finding the Fourth Proportional to 8,627.56, 12,940.26 and 3,429.52

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Solution

The fourth proportional to 8,627.56, 12,940.26 and 3,429.52 is: 5,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.56 : 12,940.26 = 3,429.52 : x
  2. Step 2: Convert to fraction form
    8,627.56/12,940.26 = 3,429.52/x
  3. Step 3: Cross multiply
    8,627.56x = 12,940.26 × 3,429.52
  4. Step 4: Simplify right side
    8,627.56x = 44,378,880.48
  5. Step 5: Solve for x
    x = 44,378,880.48/8,627.56
  6. Step 6: Final answer
    x = 5,143.85

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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.