Home / 12,213.96-16,855.26-6,624.96

Finding the Fourth Proportional to 12,213.96, 16,855.26 and 6,624.96

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Solution

The fourth proportional to 12,213.96, 16,855.26 and 6,624.96 is: 9,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.96 : 16,855.26 = 6,624.96 : x
  2. Step 2: Convert to fraction form
    12,213.96/16,855.26 = 6,624.96/x
  3. Step 3: Cross multiply
    12,213.96x = 16,855.26 × 6,624.96
  4. Step 4: Simplify right side
    12,213.96x = 111,665,423.29
  5. Step 5: Solve for x
    x = 111,665,423.29/12,213.96
  6. Step 6: Final answer
    x = 9,142.44

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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.