Home / 12,126.09-18,173.40-5,537.73

Finding the Fourth Proportional to 12,126.09, 18,173.40 and 5,537.73

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Solution

The fourth proportional to 12,126.09, 18,173.40 and 5,537.73 is: 8,299.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.09 : 18,173.40 = 5,537.73 : x
  2. Step 2: Convert to fraction form
    12,126.09/18,173.40 = 5,537.73/x
  3. Step 3: Cross multiply
    12,126.09x = 18,173.40 × 5,537.73
  4. Step 4: Simplify right side
    12,126.09x = 100,639,382.38
  5. Step 5: Solve for x
    x = 100,639,382.38/12,126.09
  6. Step 6: Final answer
    x = 8,299.41

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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.