Home / 12,115.39-18,173.09-3,795.48

Finding the Fourth Proportional to 12,115.39, 18,173.09 and 3,795.48

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Solution

The fourth proportional to 12,115.39, 18,173.09 and 3,795.48 is: 5,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.39 : 18,173.09 = 3,795.48 : x
  2. Step 2: Convert to fraction form
    12,115.39/18,173.09 = 3,795.48/x
  3. Step 3: Cross multiply
    12,115.39x = 18,173.09 × 3,795.48
  4. Step 4: Simplify right side
    12,115.39x = 68,975,599.63
  5. Step 5: Solve for x
    x = 68,975,599.63/12,115.39
  6. Step 6: Final answer
    x = 5,693.22

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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.