Home / 10,690.20-16,037.82-4,116.60

Finding the Fourth Proportional to 10,690.20, 16,037.82 and 4,116.60

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Solution

The fourth proportional to 10,690.20, 16,037.82 and 4,116.60 is: 6,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.20 : 16,037.82 = 4,116.60 : x
  2. Step 2: Convert to fraction form
    10,690.20/16,037.82 = 4,116.60/x
  3. Step 3: Cross multiply
    10,690.20x = 16,037.82 × 4,116.60
  4. Step 4: Simplify right side
    10,690.20x = 66,021,289.81
  5. Step 5: Solve for x
    x = 66,021,289.81/10,690.20
  6. Step 6: Final answer
    x = 6,175.87

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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.