Home / 18,765.37-25,884.93-12,392.02

Finding the Fourth Proportional to 18,765.37, 25,884.93 and 12,392.02

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Solution

The fourth proportional to 18,765.37, 25,884.93 and 12,392.02 is: 17,093.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.37 : 25,884.93 = 12,392.02 : x
  2. Step 2: Convert to fraction form
    18,765.37/25,884.93 = 12,392.02/x
  3. Step 3: Cross multiply
    18,765.37x = 25,884.93 × 12,392.02
  4. Step 4: Simplify right side
    18,765.37x = 320,766,570.26
  5. Step 5: Solve for x
    x = 320,766,570.26/18,765.37
  6. Step 6: Final answer
    x = 17,093.54

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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.