Home / 13,676.46-20,512.86-3,814.91

Finding the Fourth Proportional to 13,676.46, 20,512.86 and 3,814.91

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Solution

The fourth proportional to 13,676.46, 20,512.86 and 3,814.91 is: 5,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.46 : 20,512.86 = 3,814.91 : x
  2. Step 2: Convert to fraction form
    13,676.46/20,512.86 = 3,814.91/x
  3. Step 3: Cross multiply
    13,676.46x = 20,512.86 × 3,814.91
  4. Step 4: Simplify right side
    13,676.46x = 78,254,714.74
  5. Step 5: Solve for x
    x = 78,254,714.74/13,676.46
  6. Step 6: Final answer
    x = 5,721.85

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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.