Home / 13,840.05-20,774.22-10,131.27

Finding the Fourth Proportional to 13,840.05, 20,774.22 and 10,131.27

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Solution

The fourth proportional to 13,840.05, 20,774.22 and 10,131.27 is: 15,207.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.05 : 20,774.22 = 10,131.27 : x
  2. Step 2: Convert to fraction form
    13,840.05/20,774.22 = 10,131.27/x
  3. Step 3: Cross multiply
    13,840.05x = 20,774.22 × 10,131.27
  4. Step 4: Simplify right side
    13,840.05x = 210,469,231.86
  5. Step 5: Solve for x
    x = 210,469,231.86/13,840.05
  6. Step 6: Final answer
    x = 15,207.26

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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.