Home / 11,928.92-17,902.60-8,256.80

Finding the Fourth Proportional to 11,928.92, 17,902.60 and 8,256.80

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Solution

The fourth proportional to 11,928.92, 17,902.60 and 8,256.80 is: 12,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.92 : 17,902.60 = 8,256.80 : x
  2. Step 2: Convert to fraction form
    11,928.92/17,902.60 = 8,256.80/x
  3. Step 3: Cross multiply
    11,928.92x = 17,902.60 × 8,256.80
  4. Step 4: Simplify right side
    11,928.92x = 147,818,211.79
  5. Step 5: Solve for x
    x = 147,818,211.79/11,928.92
  6. Step 6: Final answer
    x = 12,391.59

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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.