Home / 26,198.06-39,265.70-12,139.02

Finding the Fourth Proportional to 26,198.06, 39,265.70 and 12,139.02

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Solution

The fourth proportional to 26,198.06, 39,265.70 and 12,139.02 is: 18,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,198.06 : 39,265.70 = 12,139.02 : x
  2. Step 2: Convert to fraction form
    26,198.06/39,265.70 = 12,139.02/x
  3. Step 3: Cross multiply
    26,198.06x = 39,265.70 × 12,139.02
  4. Step 4: Simplify right side
    26,198.06x = 476,647,056.92
  5. Step 5: Solve for x
    x = 476,647,056.92/26,198.06
  6. Step 6: Final answer
    x = 18,193.99

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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.