Home / 8,512.45-12,759.89-6,166.55

Finding the Fourth Proportional to 8,512.45, 12,759.89 and 6,166.55

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Solution

The fourth proportional to 8,512.45, 12,759.89 and 6,166.55 is: 9,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.45 : 12,759.89 = 6,166.55 : x
  2. Step 2: Convert to fraction form
    8,512.45/12,759.89 = 6,166.55/x
  3. Step 3: Cross multiply
    8,512.45x = 12,759.89 × 6,166.55
  4. Step 4: Simplify right side
    8,512.45x = 78,684,499.68
  5. Step 5: Solve for x
    x = 78,684,499.68/8,512.45
  6. Step 6: Final answer
    x = 9,243.46

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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.