Home / 12,627.50-18,940.46-3,861.72

Finding the Fourth Proportional to 12,627.50, 18,940.46 and 3,861.72

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Solution

The fourth proportional to 12,627.50, 18,940.46 and 3,861.72 is: 5,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.50 : 18,940.46 = 3,861.72 : x
  2. Step 2: Convert to fraction form
    12,627.50/18,940.46 = 3,861.72/x
  3. Step 3: Cross multiply
    12,627.50x = 18,940.46 × 3,861.72
  4. Step 4: Simplify right side
    12,627.50x = 73,142,753.19
  5. Step 5: Solve for x
    x = 73,142,753.19/12,627.50
  6. Step 6: Final answer
    x = 5,792.34

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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.