Home / 18,277.92-27,428.22-8,418.60

Finding the Fourth Proportional to 18,277.92, 27,428.22 and 8,418.60

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Solution

The fourth proportional to 18,277.92, 27,428.22 and 8,418.60 is: 12,633.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.92 : 27,428.22 = 8,418.60 : x
  2. Step 2: Convert to fraction form
    18,277.92/27,428.22 = 8,418.60/x
  3. Step 3: Cross multiply
    18,277.92x = 27,428.22 × 8,418.60
  4. Step 4: Simplify right side
    18,277.92x = 230,907,212.89
  5. Step 5: Solve for x
    x = 230,907,212.89/18,277.92
  6. Step 6: Final answer
    x = 12,633.12

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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.