Home / 12,440.38-18,660.44-3,206.38

Finding the Fourth Proportional to 12,440.38, 18,660.44 and 3,206.38

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Solution

The fourth proportional to 12,440.38, 18,660.44 and 3,206.38 is: 4,809.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.38 : 18,660.44 = 3,206.38 : x
  2. Step 2: Convert to fraction form
    12,440.38/18,660.44 = 3,206.38/x
  3. Step 3: Cross multiply
    12,440.38x = 18,660.44 × 3,206.38
  4. Step 4: Simplify right side
    12,440.38x = 59,832,461.61
  5. Step 5: Solve for x
    x = 59,832,461.61/12,440.38
  6. Step 6: Final answer
    x = 4,809.54

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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.