Home / 8,005.92-12,014.28-2,811.84

Finding the Fourth Proportional to 8,005.92, 12,014.28 and 2,811.84

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Solution

The fourth proportional to 8,005.92, 12,014.28 and 2,811.84 is: 4,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.92 : 12,014.28 = 2,811.84 : x
  2. Step 2: Convert to fraction form
    8,005.92/12,014.28 = 2,811.84/x
  3. Step 3: Cross multiply
    8,005.92x = 12,014.28 × 2,811.84
  4. Step 4: Simplify right side
    8,005.92x = 33,782,233.08
  5. Step 5: Solve for x
    x = 33,782,233.08/8,005.92
  6. Step 6: Final answer
    x = 4,219.66

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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.