Home / 8,076.93-12,110.85-3,140.92

Finding the Fourth Proportional to 8,076.93, 12,110.85 and 3,140.92

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Solution

The fourth proportional to 8,076.93, 12,110.85 and 3,140.92 is: 4,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.93 : 12,110.85 = 3,140.92 : x
  2. Step 2: Convert to fraction form
    8,076.93/12,110.85 = 3,140.92/x
  3. Step 3: Cross multiply
    8,076.93x = 12,110.85 × 3,140.92
  4. Step 4: Simplify right side
    8,076.93x = 38,039,212.87
  5. Step 5: Solve for x
    x = 38,039,212.87/8,076.93
  6. Step 6: Final answer
    x = 4,709.61

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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.