Home / 18,936-26,121.74-14,451.94

Finding the Fourth Proportional to 18,936, 26,121.74 and 14,451.94

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Solution

The fourth proportional to 18,936, 26,121.74 and 14,451.94 is: 19,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936 : 26,121.74 = 14,451.94 : x
  2. Step 2: Convert to fraction form
    18,936/26,121.74 = 14,451.94/x
  3. Step 3: Cross multiply
    18,936x = 26,121.74 × 14,451.94
  4. Step 4: Simplify right side
    18,936x = 377,509,819.18
  5. Step 5: Solve for x
    x = 377,509,819.18/18,936
  6. Step 6: Final answer
    x = 19,936.09

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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.