Home / 11,771.84-16,245.16-6,394.28

Finding the Fourth Proportional to 11,771.84, 16,245.16 and 6,394.28

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Solution

The fourth proportional to 11,771.84, 16,245.16 and 6,394.28 is: 8,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.84 : 16,245.16 = 6,394.28 : x
  2. Step 2: Convert to fraction form
    11,771.84/16,245.16 = 6,394.28/x
  3. Step 3: Cross multiply
    11,771.84x = 16,245.16 × 6,394.28
  4. Step 4: Simplify right side
    11,771.84x = 103,876,101.68
  5. Step 5: Solve for x
    x = 103,876,101.68/11,771.84
  6. Step 6: Final answer
    x = 8,824.12

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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.