Home / 13,998.19-20,997.69-3,609.94

Finding the Fourth Proportional to 13,998.19, 20,997.69 and 3,609.94

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Solution

The fourth proportional to 13,998.19, 20,997.69 and 3,609.94 is: 5,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.19 : 20,997.69 = 3,609.94 : x
  2. Step 2: Convert to fraction form
    13,998.19/20,997.69 = 3,609.94/x
  3. Step 3: Cross multiply
    13,998.19x = 20,997.69 × 3,609.94
  4. Step 4: Simplify right side
    13,998.19x = 75,800,382.99
  5. Step 5: Solve for x
    x = 75,800,382.99/13,998.19
  6. Step 6: Final answer
    x = 5,415.01

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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.