Home / 11,867.16-17,786.77-4,842.79

Finding the Fourth Proportional to 11,867.16, 17,786.77 and 4,842.79

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Solution

The fourth proportional to 11,867.16, 17,786.77 and 4,842.79 is: 7,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.16 : 17,786.77 = 4,842.79 : x
  2. Step 2: Convert to fraction form
    11,867.16/17,786.77 = 4,842.79/x
  3. Step 3: Cross multiply
    11,867.16x = 17,786.77 × 4,842.79
  4. Step 4: Simplify right side
    11,867.16x = 86,137,591.89
  5. Step 5: Solve for x
    x = 86,137,591.89/11,867.16
  6. Step 6: Final answer
    x = 7,258.48

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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.