Home / 8,076.24-12,114.60-6,778.80

Finding the Fourth Proportional to 8,076.24, 12,114.60 and 6,778.80

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Solution

The fourth proportional to 8,076.24, 12,114.60 and 6,778.80 is: 10,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.24 : 12,114.60 = 6,778.80 : x
  2. Step 2: Convert to fraction form
    8,076.24/12,114.60 = 6,778.80/x
  3. Step 3: Cross multiply
    8,076.24x = 12,114.60 × 6,778.80
  4. Step 4: Simplify right side
    8,076.24x = 82,122,450.48
  5. Step 5: Solve for x
    x = 82,122,450.48/8,076.24
  6. Step 6: Final answer
    x = 10,168.40

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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.