Home / 11,858.69-17,785.30-4,463.90

Finding the Fourth Proportional to 11,858.69, 17,785.30 and 4,463.90

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Solution

The fourth proportional to 11,858.69, 17,785.30 and 4,463.90 is: 6,694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.69 : 17,785.30 = 4,463.90 : x
  2. Step 2: Convert to fraction form
    11,858.69/17,785.30 = 4,463.90/x
  3. Step 3: Cross multiply
    11,858.69x = 17,785.30 × 4,463.90
  4. Step 4: Simplify right side
    11,858.69x = 79,391,700.58
  5. Step 5: Solve for x
    x = 79,391,700.58/11,858.69
  6. Step 6: Final answer
    x = 6,694.81

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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.