Home / 18,172.12-27,201.06-12,516.59

Finding the Fourth Proportional to 18,172.12, 27,201.06 and 12,516.59

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Solution

The fourth proportional to 18,172.12, 27,201.06 and 12,516.59 is: 18,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.12 : 27,201.06 = 12,516.59 : x
  2. Step 2: Convert to fraction form
    18,172.12/27,201.06 = 12,516.59/x
  3. Step 3: Cross multiply
    18,172.12x = 27,201.06 × 12,516.59
  4. Step 4: Simplify right side
    18,172.12x = 340,464,515.59
  5. Step 5: Solve for x
    x = 340,464,515.59/18,172.12
  6. Step 6: Final answer
    x = 18,735.54

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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.