Home / 13,917.99-20,876.69-3,388.07

Finding the Fourth Proportional to 13,917.99, 20,876.69 and 3,388.07

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Solution

The fourth proportional to 13,917.99, 20,876.69 and 3,388.07 is: 5,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.99 : 20,876.69 = 3,388.07 : x
  2. Step 2: Convert to fraction form
    13,917.99/20,876.69 = 3,388.07/x
  3. Step 3: Cross multiply
    13,917.99x = 20,876.69 × 3,388.07
  4. Step 4: Simplify right side
    13,917.99x = 70,731,617.96
  5. Step 5: Solve for x
    x = 70,731,617.96/13,917.99
  6. Step 6: Final answer
    x = 5,082.03

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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.