Home / 11,431.92-15,771.69-6,953.97

Finding the Fourth Proportional to 11,431.92, 15,771.69 and 6,953.97

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Solution

The fourth proportional to 11,431.92, 15,771.69 and 6,953.97 is: 9,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.92 : 15,771.69 = 6,953.97 : x
  2. Step 2: Convert to fraction form
    11,431.92/15,771.69 = 6,953.97/x
  3. Step 3: Cross multiply
    11,431.92x = 15,771.69 × 6,953.97
  4. Step 4: Simplify right side
    11,431.92x = 109,675,859.11
  5. Step 5: Solve for x
    x = 109,675,859.11/11,431.92
  6. Step 6: Final answer
    x = 9,593.83

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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.