Home / 8,912.46-12,299.52-5,768.64

Finding the Fourth Proportional to 8,912.46, 12,299.52 and 5,768.64

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Solution

The fourth proportional to 8,912.46, 12,299.52 and 5,768.64 is: 7,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.46 : 12,299.52 = 5,768.64 : x
  2. Step 2: Convert to fraction form
    8,912.46/12,299.52 = 5,768.64/x
  3. Step 3: Cross multiply
    8,912.46x = 12,299.52 × 5,768.64
  4. Step 4: Simplify right side
    8,912.46x = 70,951,503.05
  5. Step 5: Solve for x
    x = 70,951,503.05/8,912.46
  6. Step 6: Final answer
    x = 7,960.93

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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.