Home / 18,109.22-24,979.93-13,261.37

Finding the Fourth Proportional to 18,109.22, 24,979.93 and 13,261.37

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Solution

The fourth proportional to 18,109.22, 24,979.93 and 13,261.37 is: 18,292.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.22 : 24,979.93 = 13,261.37 : x
  2. Step 2: Convert to fraction form
    18,109.22/24,979.93 = 13,261.37/x
  3. Step 3: Cross multiply
    18,109.22x = 24,979.93 × 13,261.37
  4. Step 4: Simplify right side
    18,109.22x = 331,267,936.25
  5. Step 5: Solve for x
    x = 331,267,936.25/18,109.22
  6. Step 6: Final answer
    x = 18,292.78

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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.