Home / 7,121.21-9,824.46-4,467.65

Finding the Fourth Proportional to 7,121.21, 9,824.46 and 4,467.65

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Solution

The fourth proportional to 7,121.21, 9,824.46 and 4,467.65 is: 6,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.21 : 9,824.46 = 4,467.65 : x
  2. Step 2: Convert to fraction form
    7,121.21/9,824.46 = 4,467.65/x
  3. Step 3: Cross multiply
    7,121.21x = 9,824.46 × 4,467.65
  4. Step 4: Simplify right side
    7,121.21x = 43,892,199.60
  5. Step 5: Solve for x
    x = 43,892,199.60/7,121.21
  6. Step 6: Final answer
    x = 6,163.59

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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.