Home / 8,243.96-12,360.45-4,285.49

Finding the Fourth Proportional to 8,243.96, 12,360.45 and 4,285.49

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Solution

The fourth proportional to 8,243.96, 12,360.45 and 4,285.49 is: 6,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.96 : 12,360.45 = 4,285.49 : x
  2. Step 2: Convert to fraction form
    8,243.96/12,360.45 = 4,285.49/x
  3. Step 3: Cross multiply
    8,243.96x = 12,360.45 × 4,285.49
  4. Step 4: Simplify right side
    8,243.96x = 52,970,584.87
  5. Step 5: Solve for x
    x = 52,970,584.87/8,243.96
  6. Step 6: Final answer
    x = 6,425.38

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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.