Home / 11,214.22-16,815.86-6,405.10

Finding the Fourth Proportional to 11,214.22, 16,815.86 and 6,405.10

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Solution

The fourth proportional to 11,214.22, 16,815.86 and 6,405.10 is: 9,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.22 : 16,815.86 = 6,405.10 : x
  2. Step 2: Convert to fraction form
    11,214.22/16,815.86 = 6,405.10/x
  3. Step 3: Cross multiply
    11,214.22x = 16,815.86 × 6,405.10
  4. Step 4: Simplify right side
    11,214.22x = 107,707,198.83
  5. Step 5: Solve for x
    x = 107,707,198.83/11,214.22
  6. Step 6: Final answer
    x = 9,604.52

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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.