Home / 11,940.37-17,911.68-4,920.85

Finding the Fourth Proportional to 11,940.37, 17,911.68 and 4,920.85

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Solution

The fourth proportional to 11,940.37, 17,911.68 and 4,920.85 is: 7,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.37 : 17,911.68 = 4,920.85 : x
  2. Step 2: Convert to fraction form
    11,940.37/17,911.68 = 4,920.85/x
  3. Step 3: Cross multiply
    11,940.37x = 17,911.68 × 4,920.85
  4. Step 4: Simplify right side
    11,940.37x = 88,140,690.53
  5. Step 5: Solve for x
    x = 88,140,690.53/11,940.37
  6. Step 6: Final answer
    x = 7,381.74

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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.