Home / 13,911.57-19,197.68-7,623.54

Finding the Fourth Proportional to 13,911.57, 19,197.68 and 7,623.54

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Solution

The fourth proportional to 13,911.57, 19,197.68 and 7,623.54 is: 10,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.57 : 19,197.68 = 7,623.54 : x
  2. Step 2: Convert to fraction form
    13,911.57/19,197.68 = 7,623.54/x
  3. Step 3: Cross multiply
    13,911.57x = 19,197.68 × 7,623.54
  4. Step 4: Simplify right side
    13,911.57x = 146,354,243.27
  5. Step 5: Solve for x
    x = 146,354,243.27/13,911.57
  6. Step 6: Final answer
    x = 10,520.33

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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.