Home / 13,611.05-18,789.57-9,081.26

Finding the Fourth Proportional to 13,611.05, 18,789.57 and 9,081.26

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Solution

The fourth proportional to 13,611.05, 18,789.57 and 9,081.26 is: 12,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.05 : 18,789.57 = 9,081.26 : x
  2. Step 2: Convert to fraction form
    13,611.05/18,789.57 = 9,081.26/x
  3. Step 3: Cross multiply
    13,611.05x = 18,789.57 × 9,081.26
  4. Step 4: Simplify right side
    13,611.05x = 170,633,052.66
  5. Step 5: Solve for x
    x = 170,633,052.66/13,611.05
  6. Step 6: Final answer
    x = 12,536.36

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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.