Home / 12,951.48-19,408.68-5,553.96

Finding the Fourth Proportional to 12,951.48, 19,408.68 and 5,553.96

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Solution

The fourth proportional to 12,951.48, 19,408.68 and 5,553.96 is: 8,322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.48 : 19,408.68 = 5,553.96 : x
  2. Step 2: Convert to fraction form
    12,951.48/19,408.68 = 5,553.96/x
  3. Step 3: Cross multiply
    12,951.48x = 19,408.68 × 5,553.96
  4. Step 4: Simplify right side
    12,951.48x = 107,795,032.37
  5. Step 5: Solve for x
    x = 107,795,032.37/12,951.48
  6. Step 6: Final answer
    x = 8,322.99

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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.