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Finding the Fourth Proportional to 7,684.99, 11,509.01 and 4,388.09

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Solution

The fourth proportional to 7,684.99, 11,509.01 and 4,388.09 is: 6,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.99 : 11,509.01 = 4,388.09 : x
  2. Step 2: Convert to fraction form
    7,684.99/11,509.01 = 4,388.09/x
  3. Step 3: Cross multiply
    7,684.99x = 11,509.01 × 4,388.09
  4. Step 4: Simplify right side
    7,684.99x = 50,502,571.69
  5. Step 5: Solve for x
    x = 50,502,571.69/7,684.99
  6. Step 6: Final answer
    x = 6,571.59

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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.