Home / 11,922.08-16,451.68-6,616.56

Finding the Fourth Proportional to 11,922.08, 16,451.68 and 6,616.56

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Solution

The fourth proportional to 11,922.08, 16,451.68 and 6,616.56 is: 9,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.08 : 16,451.68 = 6,616.56 : x
  2. Step 2: Convert to fraction form
    11,922.08/16,451.68 = 6,616.56/x
  3. Step 3: Cross multiply
    11,922.08x = 16,451.68 × 6,616.56
  4. Step 4: Simplify right side
    11,922.08x = 108,853,527.82
  5. Step 5: Solve for x
    x = 108,853,527.82/11,922.08
  6. Step 6: Final answer
    x = 9,130.41

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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.