Home / 11,742.08-16,198.08-8,942.72

Finding the Fourth Proportional to 11,742.08, 16,198.08 and 8,942.72

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Solution

The fourth proportional to 11,742.08, 16,198.08 and 8,942.72 is: 12,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.08 : 16,198.08 = 8,942.72 : x
  2. Step 2: Convert to fraction form
    11,742.08/16,198.08 = 8,942.72/x
  3. Step 3: Cross multiply
    11,742.08x = 16,198.08 × 8,942.72
  4. Step 4: Simplify right side
    11,742.08x = 144,854,893.98
  5. Step 5: Solve for x
    x = 144,854,893.98/11,742.08
  6. Step 6: Final answer
    x = 12,336.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.