Home / 8,189.14-12,286.44-3,507.16

Finding the Fourth Proportional to 8,189.14, 12,286.44 and 3,507.16

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Solution

The fourth proportional to 8,189.14, 12,286.44 and 3,507.16 is: 5,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.14 : 12,286.44 = 3,507.16 : x
  2. Step 2: Convert to fraction form
    8,189.14/12,286.44 = 3,507.16/x
  3. Step 3: Cross multiply
    8,189.14x = 12,286.44 × 3,507.16
  4. Step 4: Simplify right side
    8,189.14x = 43,090,510.91
  5. Step 5: Solve for x
    x = 43,090,510.91/8,189.14
  6. Step 6: Final answer
    x = 5,261.91

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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.