Home / 12,055.80-18,072.36-4,260.36

Finding the Fourth Proportional to 12,055.80, 18,072.36 and 4,260.36

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Solution

The fourth proportional to 12,055.80, 18,072.36 and 4,260.36 is: 6,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.80 : 18,072.36 = 4,260.36 : x
  2. Step 2: Convert to fraction form
    12,055.80/18,072.36 = 4,260.36/x
  3. Step 3: Cross multiply
    12,055.80x = 18,072.36 × 4,260.36
  4. Step 4: Simplify right side
    12,055.80x = 76,994,759.65
  5. Step 5: Solve for x
    x = 76,994,759.65/12,055.80
  6. Step 6: Final answer
    x = 6,386.53

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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.