Home / 11,736.38-16,196.21-6,431.39

Finding the Fourth Proportional to 11,736.38, 16,196.21 and 6,431.39

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Solution

The fourth proportional to 11,736.38, 16,196.21 and 6,431.39 is: 8,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,736.38 : 16,196.21 = 6,431.39 : x
  2. Step 2: Convert to fraction form
    11,736.38/16,196.21 = 6,431.39/x
  3. Step 3: Cross multiply
    11,736.38x = 16,196.21 × 6,431.39
  4. Step 4: Simplify right side
    11,736.38x = 104,164,029.89
  5. Step 5: Solve for x
    x = 104,164,029.89/11,736.38
  6. Step 6: Final answer
    x = 8,875.32

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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.