Home / 13,919.82-20,857.83-10,764.99

Finding the Fourth Proportional to 13,919.82, 20,857.83 and 10,764.99

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Solution

The fourth proportional to 13,919.82, 20,857.83 and 10,764.99 is: 16,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.82 : 20,857.83 = 10,764.99 : x
  2. Step 2: Convert to fraction form
    13,919.82/20,857.83 = 10,764.99/x
  3. Step 3: Cross multiply
    13,919.82x = 20,857.83 × 10,764.99
  4. Step 4: Simplify right side
    13,919.82x = 224,534,254.00
  5. Step 5: Solve for x
    x = 224,534,254.00/13,919.82
  6. Step 6: Final answer
    x = 16,130.54

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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.