Home / 8,054.82-12,077.76-2,787

Finding the Fourth Proportional to 8,054.82, 12,077.76 and 2,787

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Solution

The fourth proportional to 8,054.82, 12,077.76 and 2,787 is: 4,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,054.82 : 12,077.76 = 2,787 : x
  2. Step 2: Convert to fraction form
    8,054.82/12,077.76 = 2,787/x
  3. Step 3: Cross multiply
    8,054.82x = 12,077.76 × 2,787
  4. Step 4: Simplify right side
    8,054.82x = 33,660,717.12
  5. Step 5: Solve for x
    x = 33,660,717.12/8,054.82
  6. Step 6: Final answer
    x = 4,178.95

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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.