Home / 12,408.62-17,123.82-6,743.34

Finding the Fourth Proportional to 12,408.62, 17,123.82 and 6,743.34

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Solution

The fourth proportional to 12,408.62, 17,123.82 and 6,743.34 is: 9,305.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.62 : 17,123.82 = 6,743.34 : x
  2. Step 2: Convert to fraction form
    12,408.62/17,123.82 = 6,743.34/x
  3. Step 3: Cross multiply
    12,408.62x = 17,123.82 × 6,743.34
  4. Step 4: Simplify right side
    12,408.62x = 115,471,740.36
  5. Step 5: Solve for x
    x = 115,471,740.36/12,408.62
  6. Step 6: Final answer
    x = 9,305.77

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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.