Home / 17,690.41-26,535.61-12,126.89

Finding the Fourth Proportional to 17,690.41, 26,535.61 and 12,126.89

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Solution

The fourth proportional to 17,690.41, 26,535.61 and 12,126.89 is: 18,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.41 : 26,535.61 = 12,126.89 : x
  2. Step 2: Convert to fraction form
    17,690.41/26,535.61 = 12,126.89/x
  3. Step 3: Cross multiply
    17,690.41x = 26,535.61 × 12,126.89
  4. Step 4: Simplify right side
    17,690.41x = 321,794,321.68
  5. Step 5: Solve for x
    x = 321,794,321.68/17,690.41
  6. Step 6: Final answer
    x = 18,190.32

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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.