Home / 11,763.20-16,236.60-6,730.16

Finding the Fourth Proportional to 11,763.20, 16,236.60 and 6,730.16

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Solution

The fourth proportional to 11,763.20, 16,236.60 and 6,730.16 is: 9,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.20 : 16,236.60 = 6,730.16 : x
  2. Step 2: Convert to fraction form
    11,763.20/16,236.60 = 6,730.16/x
  3. Step 3: Cross multiply
    11,763.20x = 16,236.60 × 6,730.16
  4. Step 4: Simplify right side
    11,763.20x = 109,274,915.86
  5. Step 5: Solve for x
    x = 109,274,915.86/11,763.20
  6. Step 6: Final answer
    x = 9,289.56

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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.