Home / 11,455.80-17,183.70-7,956.60

Finding the Fourth Proportional to 11,455.80, 17,183.70 and 7,956.60

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Solution

The fourth proportional to 11,455.80, 17,183.70 and 7,956.60 is: 11,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.80 : 17,183.70 = 7,956.60 : x
  2. Step 2: Convert to fraction form
    11,455.80/17,183.70 = 7,956.60/x
  3. Step 3: Cross multiply
    11,455.80x = 17,183.70 × 7,956.60
  4. Step 4: Simplify right side
    11,455.80x = 136,723,827.42
  5. Step 5: Solve for x
    x = 136,723,827.42/11,455.80
  6. Step 6: Final answer
    x = 11,934.90

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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.