Home / 11,661.68-16,091.78-6,626.46

Finding the Fourth Proportional to 11,661.68, 16,091.78 and 6,626.46

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Solution

The fourth proportional to 11,661.68, 16,091.78 and 6,626.46 is: 9,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.68 : 16,091.78 = 6,626.46 : x
  2. Step 2: Convert to fraction form
    11,661.68/16,091.78 = 6,626.46/x
  3. Step 3: Cross multiply
    11,661.68x = 16,091.78 × 6,626.46
  4. Step 4: Simplify right side
    11,661.68x = 106,631,536.50
  5. Step 5: Solve for x
    x = 106,631,536.50/11,661.68
  6. Step 6: Final answer
    x = 9,143.75

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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.