Home / 11,249.58-15,523.74-6,774.78

Finding the Fourth Proportional to 11,249.58, 15,523.74 and 6,774.78

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Solution

The fourth proportional to 11,249.58, 15,523.74 and 6,774.78 is: 9,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.58 : 15,523.74 = 6,774.78 : x
  2. Step 2: Convert to fraction form
    11,249.58/15,523.74 = 6,774.78/x
  3. Step 3: Cross multiply
    11,249.58x = 15,523.74 × 6,774.78
  4. Step 4: Simplify right side
    11,249.58x = 105,169,923.28
  5. Step 5: Solve for x
    x = 105,169,923.28/11,249.58
  6. Step 6: Final answer
    x = 9,348.79

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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.