Home / 11,736.20-16,196.16-6,430.66

Finding the Fourth Proportional to 11,736.20, 16,196.16 and 6,430.66

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Solution

The fourth proportional to 11,736.20, 16,196.16 and 6,430.66 is: 8,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,736.20 : 16,196.16 = 6,430.66 : x
  2. Step 2: Convert to fraction form
    11,736.20/16,196.16 = 6,430.66/x
  3. Step 3: Cross multiply
    11,736.20x = 16,196.16 × 6,430.66
  4. Step 4: Simplify right side
    11,736.20x = 104,151,998.27
  5. Step 5: Solve for x
    x = 104,151,998.27/11,736.20
  6. Step 6: Final answer
    x = 8,874.42

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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.