Home / 17,890.25-26,839.89-12,635.51

Finding the Fourth Proportional to 17,890.25, 26,839.89 and 12,635.51

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Solution

The fourth proportional to 17,890.25, 26,839.89 and 12,635.51 is: 18,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.25 : 26,839.89 = 12,635.51 : x
  2. Step 2: Convert to fraction form
    17,890.25/26,839.89 = 12,635.51/x
  3. Step 3: Cross multiply
    17,890.25x = 26,839.89 × 12,635.51
  4. Step 4: Simplify right side
    17,890.25x = 339,135,765.59
  5. Step 5: Solve for x
    x = 339,135,765.59/17,890.25
  6. Step 6: Final answer
    x = 18,956.46

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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.