Home / 10,919.70-16,379.54-4,345.94

Finding the Fourth Proportional to 10,919.70, 16,379.54 and 4,345.94

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Solution

The fourth proportional to 10,919.70, 16,379.54 and 4,345.94 is: 6,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.70 : 16,379.54 = 4,345.94 : x
  2. Step 2: Convert to fraction form
    10,919.70/16,379.54 = 4,345.94/x
  3. Step 3: Cross multiply
    10,919.70x = 16,379.54 × 4,345.94
  4. Step 4: Simplify right side
    10,919.70x = 71,184,394.44
  5. Step 5: Solve for x
    x = 71,184,394.44/10,919.70
  6. Step 6: Final answer
    x = 6,518.90

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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.