Home / 13,519.82-18,647.08-11,634.55

Finding the Fourth Proportional to 13,519.82, 18,647.08 and 11,634.55

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Solution

The fourth proportional to 13,519.82, 18,647.08 and 11,634.55 is: 16,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.82 : 18,647.08 = 11,634.55 : x
  2. Step 2: Convert to fraction form
    13,519.82/18,647.08 = 11,634.55/x
  3. Step 3: Cross multiply
    13,519.82x = 18,647.08 × 11,634.55
  4. Step 4: Simplify right side
    13,519.82x = 216,950,308.91
  5. Step 5: Solve for x
    x = 216,950,308.91/13,519.82
  6. Step 6: Final answer
    x = 16,046.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.