Home / 13,845.31-20,734.04-12,514.03

Finding the Fourth Proportional to 13,845.31, 20,734.04 and 12,514.03

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Solution

The fourth proportional to 13,845.31, 20,734.04 and 12,514.03 is: 18,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.31 : 20,734.04 = 12,514.03 : x
  2. Step 2: Convert to fraction form
    13,845.31/20,734.04 = 12,514.03/x
  3. Step 3: Cross multiply
    13,845.31x = 20,734.04 × 12,514.03
  4. Step 4: Simplify right side
    13,845.31x = 259,466,398.58
  5. Step 5: Solve for x
    x = 259,466,398.58/13,845.31
  6. Step 6: Final answer
    x = 18,740.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.