Home / 11,942.12-17,860.78-10,635.09

Finding the Fourth Proportional to 11,942.12, 17,860.78 and 10,635.09

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Solution

The fourth proportional to 11,942.12, 17,860.78 and 10,635.09 is: 15,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.12 : 17,860.78 = 10,635.09 : x
  2. Step 2: Convert to fraction form
    11,942.12/17,860.78 = 10,635.09/x
  3. Step 3: Cross multiply
    11,942.12x = 17,860.78 × 10,635.09
  4. Step 4: Simplify right side
    11,942.12x = 189,951,002.77
  5. Step 5: Solve for x
    x = 189,951,002.77/11,942.12
  6. Step 6: Final answer
    x = 15,905.97

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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.