Home / 12,114.94-18,172.40-3,795.61

Finding the Fourth Proportional to 12,114.94, 18,172.40 and 3,795.61

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Solution

The fourth proportional to 12,114.94, 18,172.40 and 3,795.61 is: 5,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.94 : 18,172.40 = 3,795.61 : x
  2. Step 2: Convert to fraction form
    12,114.94/18,172.40 = 3,795.61/x
  3. Step 3: Cross multiply
    12,114.94x = 18,172.40 × 3,795.61
  4. Step 4: Simplify right side
    12,114.94x = 68,975,334.18
  5. Step 5: Solve for x
    x = 68,975,334.18/12,114.94
  6. Step 6: Final answer
    x = 5,693.41

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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.