Home / 13,514.46-20,267.58-6,939.78

Finding the Fourth Proportional to 13,514.46, 20,267.58 and 6,939.78

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Solution

The fourth proportional to 13,514.46, 20,267.58 and 6,939.78 is: 10,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.46 : 20,267.58 = 6,939.78 : x
  2. Step 2: Convert to fraction form
    13,514.46/20,267.58 = 6,939.78/x
  3. Step 3: Cross multiply
    13,514.46x = 20,267.58 × 6,939.78
  4. Step 4: Simplify right side
    13,514.46x = 140,652,546.33
  5. Step 5: Solve for x
    x = 140,652,546.33/13,514.46
  6. Step 6: Final answer
    x = 10,407.56

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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.