Home / 11,408.38-15,743.58-6,930.94

Finding the Fourth Proportional to 11,408.38, 15,743.58 and 6,930.94

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Solution

The fourth proportional to 11,408.38, 15,743.58 and 6,930.94 is: 9,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.38 : 15,743.58 = 6,930.94 : x
  2. Step 2: Convert to fraction form
    11,408.38/15,743.58 = 6,930.94/x
  3. Step 3: Cross multiply
    11,408.38x = 15,743.58 × 6,930.94
  4. Step 4: Simplify right side
    11,408.38x = 109,117,808.37
  5. Step 5: Solve for x
    x = 109,117,808.37/11,408.38
  6. Step 6: Final answer
    x = 9,564.71

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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.