Home / 12,406.06-18,609.06-3,640.96

Finding the Fourth Proportional to 12,406.06, 18,609.06 and 3,640.96

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Solution

The fourth proportional to 12,406.06, 18,609.06 and 3,640.96 is: 5,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.06 : 18,609.06 = 3,640.96 : x
  2. Step 2: Convert to fraction form
    12,406.06/18,609.06 = 3,640.96/x
  3. Step 3: Cross multiply
    12,406.06x = 18,609.06 × 3,640.96
  4. Step 4: Simplify right side
    12,406.06x = 67,754,843.10
  5. Step 5: Solve for x
    x = 67,754,843.10/12,406.06
  6. Step 6: Final answer
    x = 5,461.43

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Similar ratio
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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.