Home / 12,427.27-18,640.91-4,530.38

Finding the Fourth Proportional to 12,427.27, 18,640.91 and 4,530.38

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Solution

The fourth proportional to 12,427.27, 18,640.91 and 4,530.38 is: 6,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.27 : 18,640.91 = 4,530.38 : x
  2. Step 2: Convert to fraction form
    12,427.27/18,640.91 = 4,530.38/x
  3. Step 3: Cross multiply
    12,427.27x = 18,640.91 × 4,530.38
  4. Step 4: Simplify right side
    12,427.27x = 84,450,405.85
  5. Step 5: Solve for x
    x = 84,450,405.85/12,427.27
  6. Step 6: Final answer
    x = 6,795.57

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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.