Home / 11,137.80-16,682.40-6,747.60

Finding the Fourth Proportional to 11,137.80, 16,682.40 and 6,747.60

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Solution

The fourth proportional to 11,137.80, 16,682.40 and 6,747.60 is: 10,106.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.80 : 16,682.40 = 6,747.60 : x
  2. Step 2: Convert to fraction form
    11,137.80/16,682.40 = 6,747.60/x
  3. Step 3: Cross multiply
    11,137.80x = 16,682.40 × 6,747.60
  4. Step 4: Simplify right side
    11,137.80x = 112,566,162.24
  5. Step 5: Solve for x
    x = 112,566,162.24/11,137.80
  6. Step 6: Final answer
    x = 10,106.68

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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.