Home / 8,168.12-12,247.36-3,485.74

Finding the Fourth Proportional to 8,168.12, 12,247.36 and 3,485.74

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Solution

The fourth proportional to 8,168.12, 12,247.36 and 3,485.74 is: 5,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.12 : 12,247.36 = 3,485.74 : x
  2. Step 2: Convert to fraction form
    8,168.12/12,247.36 = 3,485.74/x
  3. Step 3: Cross multiply
    8,168.12x = 12,247.36 × 3,485.74
  4. Step 4: Simplify right side
    8,168.12x = 42,691,112.65
  5. Step 5: Solve for x
    x = 42,691,112.65/8,168.12
  6. Step 6: Final answer
    x = 5,226.55

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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.