Home / 13,879.57-20,819.32-4,018.84

Finding the Fourth Proportional to 13,879.57, 20,819.32 and 4,018.84

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Solution

The fourth proportional to 13,879.57, 20,819.32 and 4,018.84 is: 6,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.57 : 20,819.32 = 4,018.84 : x
  2. Step 2: Convert to fraction form
    13,879.57/20,819.32 = 4,018.84/x
  3. Step 3: Cross multiply
    13,879.57x = 20,819.32 × 4,018.84
  4. Step 4: Simplify right side
    13,879.57x = 83,669,515.99
  5. Step 5: Solve for x
    x = 83,669,515.99/13,879.57
  6. Step 6: Final answer
    x = 6,028.25

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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.