Home / 10,742.20-16,103.70-4,166.20

Finding the Fourth Proportional to 10,742.20, 16,103.70 and 4,166.20

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Solution

The fourth proportional to 10,742.20, 16,103.70 and 4,166.20 is: 6,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.20 : 16,103.70 = 4,166.20 : x
  2. Step 2: Convert to fraction form
    10,742.20/16,103.70 = 4,166.20/x
  3. Step 3: Cross multiply
    10,742.20x = 16,103.70 × 4,166.20
  4. Step 4: Simplify right side
    10,742.20x = 67,091,234.94
  5. Step 5: Solve for x
    x = 67,091,234.94/10,742.20
  6. Step 6: Final answer
    x = 6,245.58

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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.