Home / 8,141.37-12,211.42-3,211.05

Finding the Fourth Proportional to 8,141.37, 12,211.42 and 3,211.05

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Solution

The fourth proportional to 8,141.37, 12,211.42 and 3,211.05 is: 4,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.37 : 12,211.42 = 3,211.05 : x
  2. Step 2: Convert to fraction form
    8,141.37/12,211.42 = 3,211.05/x
  3. Step 3: Cross multiply
    8,141.37x = 12,211.42 × 3,211.05
  4. Step 4: Simplify right side
    8,141.37x = 39,211,480.19
  5. Step 5: Solve for x
    x = 39,211,480.19/8,141.37
  6. Step 6: Final answer
    x = 4,816.32

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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.