Home / 12,530.94-18,790.41-4,208.65

Finding the Fourth Proportional to 12,530.94, 18,790.41 and 4,208.65

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Solution

The fourth proportional to 12,530.94, 18,790.41 and 4,208.65 is: 6,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.94 : 18,790.41 = 4,208.65 : x
  2. Step 2: Convert to fraction form
    12,530.94/18,790.41 = 4,208.65/x
  3. Step 3: Cross multiply
    12,530.94x = 18,790.41 × 4,208.65
  4. Step 4: Simplify right side
    12,530.94x = 79,082,259.05
  5. Step 5: Solve for x
    x = 79,082,259.05/12,530.94
  6. Step 6: Final answer
    x = 6,310.96

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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.