Home / 18,734.82-25,845.93-11,278.50

Finding the Fourth Proportional to 18,734.82, 25,845.93 and 11,278.50

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Solution

The fourth proportional to 18,734.82, 25,845.93 and 11,278.50 is: 15,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.82 : 25,845.93 = 11,278.50 : x
  2. Step 2: Convert to fraction form
    18,734.82/25,845.93 = 11,278.50/x
  3. Step 3: Cross multiply
    18,734.82x = 25,845.93 × 11,278.50
  4. Step 4: Simplify right side
    18,734.82x = 291,503,321.51
  5. Step 5: Solve for x
    x = 291,503,321.51/18,734.82
  6. Step 6: Final answer
    x = 15,559.44

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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.