Home / 11,889.75-16,407.82-6,853.94

Finding the Fourth Proportional to 11,889.75, 16,407.82 and 6,853.94

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Solution

The fourth proportional to 11,889.75, 16,407.82 and 6,853.94 is: 9,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.75 : 16,407.82 = 6,853.94 : x
  2. Step 2: Convert to fraction form
    11,889.75/16,407.82 = 6,853.94/x
  3. Step 3: Cross multiply
    11,889.75x = 16,407.82 × 6,853.94
  4. Step 4: Simplify right side
    11,889.75x = 112,458,254.83
  5. Step 5: Solve for x
    x = 112,458,254.83/11,889.75
  6. Step 6: Final answer
    x = 9,458.42

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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.