Home / 7,716.28-11,576.38-2,169.68

Finding the Fourth Proportional to 7,716.28, 11,576.38 and 2,169.68

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Solution

The fourth proportional to 7,716.28, 11,576.38 and 2,169.68 is: 3,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.28 : 11,576.38 = 2,169.68 : x
  2. Step 2: Convert to fraction form
    7,716.28/11,576.38 = 2,169.68/x
  3. Step 3: Cross multiply
    7,716.28x = 11,576.38 × 2,169.68
  4. Step 4: Simplify right side
    7,716.28x = 25,117,040.16
  5. Step 5: Solve for x
    x = 25,117,040.16/7,716.28
  6. Step 6: Final answer
    x = 3,255.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.