Home / 18,638.44-25,721.26-10,255

Finding the Fourth Proportional to 18,638.44, 25,721.26 and 10,255

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Solution

The fourth proportional to 18,638.44, 25,721.26 and 10,255 is: 14,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.44 : 25,721.26 = 10,255 : x
  2. Step 2: Convert to fraction form
    18,638.44/25,721.26 = 10,255/x
  3. Step 3: Cross multiply
    18,638.44x = 25,721.26 × 10,255
  4. Step 4: Simplify right side
    18,638.44x = 263,771,521.30
  5. Step 5: Solve for x
    x = 263,771,521.30/18,638.44
  6. Step 6: Final answer
    x = 14,152.02

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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.