Home / 7,630.55-11,450.07-4,120.48

Finding the Fourth Proportional to 7,630.55, 11,450.07 and 4,120.48

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Solution

The fourth proportional to 7,630.55, 11,450.07 and 4,120.48 is: 6,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.55 : 11,450.07 = 4,120.48 : x
  2. Step 2: Convert to fraction form
    7,630.55/11,450.07 = 4,120.48/x
  3. Step 3: Cross multiply
    7,630.55x = 11,450.07 × 4,120.48
  4. Step 4: Simplify right side
    7,630.55x = 47,179,755.81
  5. Step 5: Solve for x
    x = 47,179,755.81/7,630.55
  6. Step 6: Final answer
    x = 6,183.01

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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.