Home / 12,195.26-16,829.32-6,890.30

Finding the Fourth Proportional to 12,195.26, 16,829.32 and 6,890.30

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Solution

The fourth proportional to 12,195.26, 16,829.32 and 6,890.30 is: 9,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.26 : 16,829.32 = 6,890.30 : x
  2. Step 2: Convert to fraction form
    12,195.26/16,829.32 = 6,890.30/x
  3. Step 3: Cross multiply
    12,195.26x = 16,829.32 × 6,890.30
  4. Step 4: Simplify right side
    12,195.26x = 115,959,063.60
  5. Step 5: Solve for x
    x = 115,959,063.60/12,195.26
  6. Step 6: Final answer
    x = 9,508.54

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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.