Home / 7,764.68-11,647-3,085.76

Finding the Fourth Proportional to 7,764.68, 11,647 and 3,085.76

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Solution

The fourth proportional to 7,764.68, 11,647 and 3,085.76 is: 4,628.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.68 : 11,647 = 3,085.76 : x
  2. Step 2: Convert to fraction form
    7,764.68/11,647 = 3,085.76/x
  3. Step 3: Cross multiply
    7,764.68x = 11,647 × 3,085.76
  4. Step 4: Simplify right side
    7,764.68x = 35,939,846.72
  5. Step 5: Solve for x
    x = 35,939,846.72/7,764.68
  6. Step 6: Final answer
    x = 4,628.63

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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.