Home / 11,408.13-15,743.39-6,692.49

Finding the Fourth Proportional to 11,408.13, 15,743.39 and 6,692.49

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Solution

The fourth proportional to 11,408.13, 15,743.39 and 6,692.49 is: 9,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.13 : 15,743.39 = 6,692.49 : x
  2. Step 2: Convert to fraction form
    11,408.13/15,743.39 = 6,692.49/x
  3. Step 3: Cross multiply
    11,408.13x = 15,743.39 × 6,692.49
  4. Step 4: Simplify right side
    11,408.13x = 105,362,446.68
  5. Step 5: Solve for x
    x = 105,362,446.68/11,408.13
  6. Step 6: Final answer
    x = 9,235.73

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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.