Home / 18,638.96-25,721.64-10,255.44

Finding the Fourth Proportional to 18,638.96, 25,721.64 and 10,255.44

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Solution

The fourth proportional to 18,638.96, 25,721.64 and 10,255.44 is: 14,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.96 : 25,721.64 = 10,255.44 : x
  2. Step 2: Convert to fraction form
    18,638.96/25,721.64 = 10,255.44/x
  3. Step 3: Cross multiply
    18,638.96x = 25,721.64 × 10,255.44
  4. Step 4: Simplify right side
    18,638.96x = 263,786,735.72
  5. Step 5: Solve for x
    x = 263,786,735.72/18,638.96
  6. Step 6: Final answer
    x = 14,152.44

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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.