Home / 13,120.55-19,668.42-5,227.94

Finding the Fourth Proportional to 13,120.55, 19,668.42 and 5,227.94

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Solution

The fourth proportional to 13,120.55, 19,668.42 and 5,227.94 is: 7,836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.55 : 19,668.42 = 5,227.94 : x
  2. Step 2: Convert to fraction form
    13,120.55/19,668.42 = 5,227.94/x
  3. Step 3: Cross multiply
    13,120.55x = 19,668.42 × 5,227.94
  4. Step 4: Simplify right side
    13,120.55x = 102,825,221.31
  5. Step 5: Solve for x
    x = 102,825,221.31/13,120.55
  6. Step 6: Final answer
    x = 7,836.96

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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.