Home / 13,453.88-18,538.62-13,272.44

Finding the Fourth Proportional to 13,453.88, 18,538.62 and 13,272.44

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Solution

The fourth proportional to 13,453.88, 18,538.62 and 13,272.44 is: 18,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.88 : 18,538.62 = 13,272.44 : x
  2. Step 2: Convert to fraction form
    13,453.88/18,538.62 = 13,272.44/x
  3. Step 3: Cross multiply
    13,453.88x = 18,538.62 × 13,272.44
  4. Step 4: Simplify right side
    13,453.88x = 246,052,721.63
  5. Step 5: Solve for x
    x = 246,052,721.63/13,453.88
  6. Step 6: Final answer
    x = 18,288.61

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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.