Home / 11,728.06-17,568.36-7,272.05

Finding the Fourth Proportional to 11,728.06, 17,568.36 and 7,272.05

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Solution

The fourth proportional to 11,728.06, 17,568.36 and 7,272.05 is: 10,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.06 : 17,568.36 = 7,272.05 : x
  2. Step 2: Convert to fraction form
    11,728.06/17,568.36 = 7,272.05/x
  3. Step 3: Cross multiply
    11,728.06x = 17,568.36 × 7,272.05
  4. Step 4: Simplify right side
    11,728.06x = 127,757,904.50
  5. Step 5: Solve for x
    x = 127,757,904.50/11,728.06
  6. Step 6: Final answer
    x = 10,893.36

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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.