Home / 8,481.23-12,728.00-4,790.67

Finding the Fourth Proportional to 8,481.23, 12,728.00 and 4,790.67

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Solution

The fourth proportional to 8,481.23, 12,728.00 and 4,790.67 is: 7,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.23 : 12,728.00 = 4,790.67 : x
  2. Step 2: Convert to fraction form
    8,481.23/12,728.00 = 4,790.67/x
  3. Step 3: Cross multiply
    8,481.23x = 12,728.00 × 4,790.67
  4. Step 4: Simplify right side
    8,481.23x = 60,975,627.59
  5. Step 5: Solve for x
    x = 60,975,627.59/8,481.23
  6. Step 6: Final answer
    x = 7,189.48

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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.