Home / 10,892.40-16,306.20-7,198.80

Finding the Fourth Proportional to 10,892.40, 16,306.20 and 7,198.80

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Solution

The fourth proportional to 10,892.40, 16,306.20 and 7,198.80 is: 10,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.40 : 16,306.20 = 7,198.80 : x
  2. Step 2: Convert to fraction form
    10,892.40/16,306.20 = 7,198.80/x
  3. Step 3: Cross multiply
    10,892.40x = 16,306.20 × 7,198.80
  4. Step 4: Simplify right side
    10,892.40x = 117,385,072.56
  5. Step 5: Solve for x
    x = 117,385,072.56/10,892.40
  6. Step 6: Final answer
    x = 10,776.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.