Home / 11,910.89-16,435.26-6,605.75

Finding the Fourth Proportional to 11,910.89, 16,435.26 and 6,605.75

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Solution

The fourth proportional to 11,910.89, 16,435.26 and 6,605.75 is: 9,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.89 : 16,435.26 = 6,605.75 : x
  2. Step 2: Convert to fraction form
    11,910.89/16,435.26 = 6,605.75/x
  3. Step 3: Cross multiply
    11,910.89x = 16,435.26 × 6,605.75
  4. Step 4: Simplify right side
    11,910.89x = 108,567,136.57
  5. Step 5: Solve for x
    x = 108,567,136.57/11,910.89
  6. Step 6: Final answer
    x = 9,114.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.