Home / 12,180.66-18,273.51-4,389.54

Finding the Fourth Proportional to 12,180.66, 18,273.51 and 4,389.54

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Solution

The fourth proportional to 12,180.66, 18,273.51 and 4,389.54 is: 6,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.66 : 18,273.51 = 4,389.54 : x
  2. Step 2: Convert to fraction form
    12,180.66/18,273.51 = 4,389.54/x
  3. Step 3: Cross multiply
    12,180.66x = 18,273.51 × 4,389.54
  4. Step 4: Simplify right side
    12,180.66x = 80,212,303.09
  5. Step 5: Solve for x
    x = 80,212,303.09/12,180.66
  6. Step 6: Final answer
    x = 6,585.22

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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.