Home / 12,185.87-18,277.99-4,791.58

Finding the Fourth Proportional to 12,185.87, 18,277.99 and 4,791.58

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Solution

The fourth proportional to 12,185.87, 18,277.99 and 4,791.58 is: 7,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.87 : 18,277.99 = 4,791.58 : x
  2. Step 2: Convert to fraction form
    12,185.87/18,277.99 = 4,791.58/x
  3. Step 3: Cross multiply
    12,185.87x = 18,277.99 × 4,791.58
  4. Step 4: Simplify right side
    12,185.87x = 87,580,393.65
  5. Step 5: Solve for x
    x = 87,580,393.65/12,185.87
  6. Step 6: Final answer
    x = 7,187.05

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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.