Home / 18,457.94-27,705.19-12,453.26

Finding the Fourth Proportional to 18,457.94, 27,705.19 and 12,453.26

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Solution

The fourth proportional to 18,457.94, 27,705.19 and 12,453.26 is: 18,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.94 : 27,705.19 = 12,453.26 : x
  2. Step 2: Convert to fraction form
    18,457.94/27,705.19 = 12,453.26/x
  3. Step 3: Cross multiply
    18,457.94x = 27,705.19 × 12,453.26
  4. Step 4: Simplify right side
    18,457.94x = 345,019,827.07
  5. Step 5: Solve for x
    x = 345,019,827.07/18,457.94
  6. Step 6: Final answer
    x = 18,692.22

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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.