Home / 8,619.66-12,927.20-2,774.97

Finding the Fourth Proportional to 8,619.66, 12,927.20 and 2,774.97

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Solution

The fourth proportional to 8,619.66, 12,927.20 and 2,774.97 is: 4,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.66 : 12,927.20 = 2,774.97 : x
  2. Step 2: Convert to fraction form
    8,619.66/12,927.20 = 2,774.97/x
  3. Step 3: Cross multiply
    8,619.66x = 12,927.20 × 2,774.97
  4. Step 4: Simplify right side
    8,619.66x = 35,872,578.31
  5. Step 5: Solve for x
    x = 35,872,578.31/8,619.66
  6. Step 6: Final answer
    x = 4,161.72

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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.