Home / 11,185.65-16,778.43-2,865.63

Finding the Fourth Proportional to 11,185.65, 16,778.43 and 2,865.63

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Solution

The fourth proportional to 11,185.65, 16,778.43 and 2,865.63 is: 4,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.65 : 16,778.43 = 2,865.63 : x
  2. Step 2: Convert to fraction form
    11,185.65/16,778.43 = 2,865.63/x
  3. Step 3: Cross multiply
    11,185.65x = 16,778.43 × 2,865.63
  4. Step 4: Simplify right side
    11,185.65x = 48,080,772.36
  5. Step 5: Solve for x
    x = 48,080,772.36/11,185.65
  6. Step 6: Final answer
    x = 4,298.43

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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.