Home / 7,172.03-9,896.36-4,028.03

Finding the Fourth Proportional to 7,172.03, 9,896.36 and 4,028.03

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Solution

The fourth proportional to 7,172.03, 9,896.36 and 4,028.03 is: 5,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.03 : 9,896.36 = 4,028.03 : x
  2. Step 2: Convert to fraction form
    7,172.03/9,896.36 = 4,028.03/x
  3. Step 3: Cross multiply
    7,172.03x = 9,896.36 × 4,028.03
  4. Step 4: Simplify right side
    7,172.03x = 39,862,814.83
  5. Step 5: Solve for x
    x = 39,862,814.83/7,172.03
  6. Step 6: Final answer
    x = 5,558.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.