Home / 6,138.09-9,212.85-4,384.80

Finding the Fourth Proportional to 6,138.09, 9,212.85 and 4,384.80

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Solution

The fourth proportional to 6,138.09, 9,212.85 and 4,384.80 is: 6,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.09 : 9,212.85 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    6,138.09/9,212.85 = 4,384.80/x
  3. Step 3: Cross multiply
    6,138.09x = 9,212.85 × 4,384.80
  4. Step 4: Simplify right side
    6,138.09x = 40,396,504.68
  5. Step 5: Solve for x
    x = 40,396,504.68/6,138.09
  6. Step 6: Final answer
    x = 6,581.28

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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.