Home / 7,630.36-11,449.79-4,120.29

Finding the Fourth Proportional to 7,630.36, 11,449.79 and 4,120.29

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Solution

The fourth proportional to 7,630.36, 11,449.79 and 4,120.29 is: 6,182.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,630.36 : 11,449.79 = 4,120.29 : x
  2. Step 2: Convert to fraction form
    7,630.36/11,449.79 = 4,120.29/x
  3. Step 3: Cross multiply
    7,630.36x = 11,449.79 × 4,120.29
  4. Step 4: Simplify right side
    7,630.36x = 47,176,450.09
  5. Step 5: Solve for x
    x = 47,176,450.09/7,630.36
  6. Step 6: Final answer
    x = 6,182.73

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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.