Home / 8,190.77-12,286.14-5,435.04

Finding the Fourth Proportional to 8,190.77, 12,286.14 and 5,435.04

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Solution

The fourth proportional to 8,190.77, 12,286.14 and 5,435.04 is: 8,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.77 : 12,286.14 = 5,435.04 : x
  2. Step 2: Convert to fraction form
    8,190.77/12,286.14 = 5,435.04/x
  3. Step 3: Cross multiply
    8,190.77x = 12,286.14 × 5,435.04
  4. Step 4: Simplify right side
    8,190.77x = 66,775,662.35
  5. Step 5: Solve for x
    x = 66,775,662.35/8,190.77
  6. Step 6: Final answer
    x = 8,152.56

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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.