Home / 12,055.31-18,083.09-3,290.23

Finding the Fourth Proportional to 12,055.31, 18,083.09 and 3,290.23

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Solution

The fourth proportional to 12,055.31, 18,083.09 and 3,290.23 is: 4,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.31 : 18,083.09 = 3,290.23 : x
  2. Step 2: Convert to fraction form
    12,055.31/18,083.09 = 3,290.23/x
  3. Step 3: Cross multiply
    12,055.31x = 18,083.09 × 3,290.23
  4. Step 4: Simplify right side
    12,055.31x = 59,497,434.80
  5. Step 5: Solve for x
    x = 59,497,434.80/12,055.31
  6. Step 6: Final answer
    x = 4,935.37

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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.