Home / 8,220.56-12,327.60-4,760.24

Finding the Fourth Proportional to 8,220.56, 12,327.60 and 4,760.24

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Solution

The fourth proportional to 8,220.56, 12,327.60 and 4,760.24 is: 7,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.56 : 12,327.60 = 4,760.24 : x
  2. Step 2: Convert to fraction form
    8,220.56/12,327.60 = 4,760.24/x
  3. Step 3: Cross multiply
    8,220.56x = 12,327.60 × 4,760.24
  4. Step 4: Simplify right side
    8,220.56x = 58,682,334.62
  5. Step 5: Solve for x
    x = 58,682,334.62/8,220.56
  6. Step 6: Final answer
    x = 7,138.48

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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.