Home / 12,440.28-18,660.46-6,207.94

Finding the Fourth Proportional to 12,440.28, 18,660.46 and 6,207.94

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Solution

The fourth proportional to 12,440.28, 18,660.46 and 6,207.94 is: 9,311.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.28 : 18,660.46 = 6,207.94 : x
  2. Step 2: Convert to fraction form
    12,440.28/18,660.46 = 6,207.94/x
  3. Step 3: Cross multiply
    12,440.28x = 18,660.46 × 6,207.94
  4. Step 4: Simplify right side
    12,440.28x = 115,843,016.05
  5. Step 5: Solve for x
    x = 115,843,016.05/12,440.28
  6. Step 6: Final answer
    x = 9,311.93

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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.