Home / 13,676.14-20,514.21-3,287.89

Finding the Fourth Proportional to 13,676.14, 20,514.21 and 3,287.89

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Solution

The fourth proportional to 13,676.14, 20,514.21 and 3,287.89 is: 4,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.14 : 20,514.21 = 3,287.89 : x
  2. Step 2: Convert to fraction form
    13,676.14/20,514.21 = 3,287.89/x
  3. Step 3: Cross multiply
    13,676.14x = 20,514.21 × 3,287.89
  4. Step 4: Simplify right side
    13,676.14x = 67,448,497.72
  5. Step 5: Solve for x
    x = 67,448,497.72/13,676.14
  6. Step 6: Final answer
    x = 4,931.84

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1.5x scale

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.