Home / 13,814.09-20,727.30-7,238.75

Finding the Fourth Proportional to 13,814.09, 20,727.30 and 7,238.75

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Solution

The fourth proportional to 13,814.09, 20,727.30 and 7,238.75 is: 10,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.09 : 20,727.30 = 7,238.75 : x
  2. Step 2: Convert to fraction form
    13,814.09/20,727.30 = 7,238.75/x
  3. Step 3: Cross multiply
    13,814.09x = 20,727.30 × 7,238.75
  4. Step 4: Simplify right side
    13,814.09x = 150,039,706.68
  5. Step 5: Solve for x
    x = 150,039,706.68/13,814.09
  6. Step 6: Final answer
    x = 10,861.36

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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.