Home / 8,076.90-12,115.40-2,529.81

Finding the Fourth Proportional to 8,076.90, 12,115.40 and 2,529.81

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Solution

The fourth proportional to 8,076.90, 12,115.40 and 2,529.81 is: 3,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.90 : 12,115.40 = 2,529.81 : x
  2. Step 2: Convert to fraction form
    8,076.90/12,115.40 = 2,529.81/x
  3. Step 3: Cross multiply
    8,076.90x = 12,115.40 × 2,529.81
  4. Step 4: Simplify right side
    8,076.90x = 30,649,647.42
  5. Step 5: Solve for x
    x = 30,649,647.42/8,076.90
  6. Step 6: Final answer
    x = 3,794.73

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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.