Home / 14,153.93-21,286.33-11,939.59

Finding the Fourth Proportional to 14,153.93, 21,286.33 and 11,939.59

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Solution

The fourth proportional to 14,153.93, 21,286.33 and 11,939.59 is: 17,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.93 : 21,286.33 = 11,939.59 : x
  2. Step 2: Convert to fraction form
    14,153.93/21,286.33 = 11,939.59/x
  3. Step 3: Cross multiply
    14,153.93x = 21,286.33 × 11,939.59
  4. Step 4: Simplify right side
    14,153.93x = 254,150,052.80
  5. Step 5: Solve for x
    x = 254,150,052.80/14,153.93
  6. Step 6: Final answer
    x = 17,956.15

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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.