Home / 11,867.75-16,376.25-6,561.83

Finding the Fourth Proportional to 11,867.75, 16,376.25 and 6,561.83

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Solution

The fourth proportional to 11,867.75, 16,376.25 and 6,561.83 is: 9,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.75 : 16,376.25 = 6,561.83 : x
  2. Step 2: Convert to fraction form
    11,867.75/16,376.25 = 6,561.83/x
  3. Step 3: Cross multiply
    11,867.75x = 16,376.25 × 6,561.83
  4. Step 4: Simplify right side
    11,867.75x = 107,458,168.54
  5. Step 5: Solve for x
    x = 107,458,168.54/11,867.75
  6. Step 6: Final answer
    x = 9,054.64

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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.