Home / 12,627.90-18,912.69-8,234.46

Finding the Fourth Proportional to 12,627.90, 18,912.69 and 8,234.46

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Solution

The fourth proportional to 12,627.90, 18,912.69 and 8,234.46 is: 12,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.90 : 18,912.69 = 8,234.46 : x
  2. Step 2: Convert to fraction form
    12,627.90/18,912.69 = 8,234.46/x
  3. Step 3: Cross multiply
    12,627.90x = 18,912.69 × 8,234.46
  4. Step 4: Simplify right side
    12,627.90x = 155,735,789.30
  5. Step 5: Solve for x
    x = 155,735,789.30/12,627.90
  6. Step 6: Final answer
    x = 12,332.68

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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.