Home / 13,170.73-19,771.53-10,399.27

Finding the Fourth Proportional to 13,170.73, 19,771.53 and 10,399.27

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Solution

The fourth proportional to 13,170.73, 19,771.53 and 10,399.27 is: 15,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.73 : 19,771.53 = 10,399.27 : x
  2. Step 2: Convert to fraction form
    13,170.73/19,771.53 = 10,399.27/x
  3. Step 3: Cross multiply
    13,170.73x = 19,771.53 × 10,399.27
  4. Step 4: Simplify right side
    13,170.73x = 205,609,478.78
  5. Step 5: Solve for x
    x = 205,609,478.78/13,170.73
  6. Step 6: Final answer
    x = 15,611.09

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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.