Home / 13,231.82-18,261.36-7,567.09

Finding the Fourth Proportional to 13,231.82, 18,261.36 and 7,567.09

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Solution

The fourth proportional to 13,231.82, 18,261.36 and 7,567.09 is: 10,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.82 : 18,261.36 = 7,567.09 : x
  2. Step 2: Convert to fraction form
    13,231.82/18,261.36 = 7,567.09/x
  3. Step 3: Cross multiply
    13,231.82x = 18,261.36 × 7,567.09
  4. Step 4: Simplify right side
    13,231.82x = 138,185,475.99
  5. Step 5: Solve for x
    x = 138,185,475.99/13,231.82
  6. Step 6: Final answer
    x = 10,443.42

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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.