Home / 8,447.12-12,672.60-2,604.20

Finding the Fourth Proportional to 8,447.12, 12,672.60 and 2,604.20

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Solution

The fourth proportional to 8,447.12, 12,672.60 and 2,604.20 is: 3,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.12 : 12,672.60 = 2,604.20 : x
  2. Step 2: Convert to fraction form
    8,447.12/12,672.60 = 2,604.20/x
  3. Step 3: Cross multiply
    8,447.12x = 12,672.60 × 2,604.20
  4. Step 4: Simplify right side
    8,447.12x = 33,001,984.92
  5. Step 5: Solve for x
    x = 33,001,984.92/8,447.12
  6. Step 6: Final answer
    x = 3,906.89

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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.