Home / 11,922.40-16,452-6,884.32

Finding the Fourth Proportional to 11,922.40, 16,452 and 6,884.32

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Solution

The fourth proportional to 11,922.40, 16,452 and 6,884.32 is: 9,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.40 : 16,452 = 6,884.32 : x
  2. Step 2: Convert to fraction form
    11,922.40/16,452 = 6,884.32/x
  3. Step 3: Cross multiply
    11,922.40x = 16,452 × 6,884.32
  4. Step 4: Simplify right side
    11,922.40x = 113,260,832.64
  5. Step 5: Solve for x
    x = 113,260,832.64/11,922.40
  6. Step 6: Final answer
    x = 9,499.83

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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.