Home / 11,863.12-17,785.08-4,942.80

Finding the Fourth Proportional to 11,863.12, 17,785.08 and 4,942.80

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Solution

The fourth proportional to 11,863.12, 17,785.08 and 4,942.80 is: 7,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.12 : 17,785.08 = 4,942.80 : x
  2. Step 2: Convert to fraction form
    11,863.12/17,785.08 = 4,942.80/x
  3. Step 3: Cross multiply
    11,863.12x = 17,785.08 × 4,942.80
  4. Step 4: Simplify right side
    11,863.12x = 87,908,093.42
  5. Step 5: Solve for x
    x = 87,908,093.42/11,863.12
  6. Step 6: Final answer
    x = 7,410.20

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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.