Home / 11,146.25-16,719.73-4,128.03

Finding the Fourth Proportional to 11,146.25, 16,719.73 and 4,128.03

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Solution

The fourth proportional to 11,146.25, 16,719.73 and 4,128.03 is: 6,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.25 : 16,719.73 = 4,128.03 : x
  2. Step 2: Convert to fraction form
    11,146.25/16,719.73 = 4,128.03/x
  3. Step 3: Cross multiply
    11,146.25x = 16,719.73 × 4,128.03
  4. Step 4: Simplify right side
    11,146.25x = 69,019,559.93
  5. Step 5: Solve for x
    x = 69,019,559.93/11,146.25
  6. Step 6: Final answer
    x = 6,192.18

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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.