Home / 10,919.85-16,379.78-4,675.83

Finding the Fourth Proportional to 10,919.85, 16,379.78 and 4,675.83

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Solution

The fourth proportional to 10,919.85, 16,379.78 and 4,675.83 is: 7,013.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.85 : 16,379.78 = 4,675.83 : x
  2. Step 2: Convert to fraction form
    10,919.85/16,379.78 = 4,675.83/x
  3. Step 3: Cross multiply
    10,919.85x = 16,379.78 × 4,675.83
  4. Step 4: Simplify right side
    10,919.85x = 76,589,066.72
  5. Step 5: Solve for x
    x = 76,589,066.72/10,919.85
  6. Step 6: Final answer
    x = 7,013.75

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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.