Home / 8,912.68-12,299.23-4,879.34

Finding the Fourth Proportional to 8,912.68, 12,299.23 and 4,879.34

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Solution

The fourth proportional to 8,912.68, 12,299.23 and 4,879.34 is: 6,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.68 : 12,299.23 = 4,879.34 : x
  2. Step 2: Convert to fraction form
    8,912.68/12,299.23 = 4,879.34/x
  3. Step 3: Cross multiply
    8,912.68x = 12,299.23 × 4,879.34
  4. Step 4: Simplify right side
    8,912.68x = 60,012,039.02
  5. Step 5: Solve for x
    x = 60,012,039.02/8,912.68
  6. Step 6: Final answer
    x = 6,733.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.