Home / 16,943.65-25,408.18-5,257.78

Finding the Fourth Proportional to 16,943.65, 25,408.18 and 5,257.78

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Solution

The fourth proportional to 16,943.65, 25,408.18 and 5,257.78 is: 7,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,943.65 : 25,408.18 = 5,257.78 : x
  2. Step 2: Convert to fraction form
    16,943.65/25,408.18 = 5,257.78/x
  3. Step 3: Cross multiply
    16,943.65x = 25,408.18 × 5,257.78
  4. Step 4: Simplify right side
    16,943.65x = 133,590,620.64
  5. Step 5: Solve for x
    x = 133,590,620.64/16,943.65
  6. Step 6: Final answer
    x = 7,884.41

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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.