Home / 12,193.20-16,816.08-7,942.66

Finding the Fourth Proportional to 12,193.20, 16,816.08 and 7,942.66

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Solution

The fourth proportional to 12,193.20, 16,816.08 and 7,942.66 is: 10,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.20 : 16,816.08 = 7,942.66 : x
  2. Step 2: Convert to fraction form
    12,193.20/16,816.08 = 7,942.66/x
  3. Step 3: Cross multiply
    12,193.20x = 16,816.08 × 7,942.66
  4. Step 4: Simplify right side
    12,193.20x = 133,564,405.97
  5. Step 5: Solve for x
    x = 133,564,405.97/12,193.20
  6. Step 6: Final answer
    x = 10,954.01

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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.