Home / 11,728.68-17,583.16-5,485.56

Finding the Fourth Proportional to 11,728.68, 17,583.16 and 5,485.56

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Solution

The fourth proportional to 11,728.68, 17,583.16 and 5,485.56 is: 8,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.68 : 17,583.16 = 5,485.56 : x
  2. Step 2: Convert to fraction form
    11,728.68/17,583.16 = 5,485.56/x
  3. Step 3: Cross multiply
    11,728.68x = 17,583.16 × 5,485.56
  4. Step 4: Simplify right side
    11,728.68x = 96,453,479.17
  5. Step 5: Solve for x
    x = 96,453,479.17/11,728.68
  6. Step 6: Final answer
    x = 8,223.73

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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.