Home / 18,514.44-25,548.41-10,555.18

Finding the Fourth Proportional to 18,514.44, 25,548.41 and 10,555.18

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Solution

The fourth proportional to 18,514.44, 25,548.41 and 10,555.18 is: 14,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.44 : 25,548.41 = 10,555.18 : x
  2. Step 2: Convert to fraction form
    18,514.44/25,548.41 = 10,555.18/x
  3. Step 3: Cross multiply
    18,514.44x = 25,548.41 × 10,555.18
  4. Step 4: Simplify right side
    18,514.44x = 269,668,028.78
  5. Step 5: Solve for x
    x = 269,668,028.78/18,514.44
  6. Step 6: Final answer
    x = 14,565.28

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Double scale
Find fourth proportional to 18,515.44, 25,549.79 and 10,556.18
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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.