Home / 13,847.13-19,163.87-13,515.44

Finding the Fourth Proportional to 13,847.13, 19,163.87 and 13,515.44

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Solution

The fourth proportional to 13,847.13, 19,163.87 and 13,515.44 is: 18,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.13 : 19,163.87 = 13,515.44 : x
  2. Step 2: Convert to fraction form
    13,847.13/19,163.87 = 13,515.44/x
  3. Step 3: Cross multiply
    13,847.13x = 19,163.87 × 13,515.44
  4. Step 4: Simplify right side
    13,847.13x = 259,007,971.76
  5. Step 5: Solve for x
    x = 259,007,971.76/13,847.13
  6. Step 6: Final answer
    x = 18,704.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.