Home / 8,109.21-11,195.13-5,604.80

Finding the Fourth Proportional to 8,109.21, 11,195.13 and 5,604.80

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Solution

The fourth proportional to 8,109.21, 11,195.13 and 5,604.80 is: 7,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.21 : 11,195.13 = 5,604.80 : x
  2. Step 2: Convert to fraction form
    8,109.21/11,195.13 = 5,604.80/x
  3. Step 3: Cross multiply
    8,109.21x = 11,195.13 × 5,604.80
  4. Step 4: Simplify right side
    8,109.21x = 62,746,464.62
  5. Step 5: Solve for x
    x = 62,746,464.62/8,109.21
  6. Step 6: Final answer
    x = 7,737.68

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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.