Home / 16,911.88-23,328.19-11,169.37

Finding the Fourth Proportional to 16,911.88, 23,328.19 and 11,169.37

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Solution

The fourth proportional to 16,911.88, 23,328.19 and 11,169.37 is: 15,406.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.88 : 23,328.19 = 11,169.37 : x
  2. Step 2: Convert to fraction form
    16,911.88/23,328.19 = 11,169.37/x
  3. Step 3: Cross multiply
    16,911.88x = 23,328.19 × 11,169.37
  4. Step 4: Simplify right side
    16,911.88x = 260,561,185.54
  5. Step 5: Solve for x
    x = 260,561,185.54/16,911.88
  6. Step 6: Final answer
    x = 15,406.99

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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.