Home / 12,086.51-18,042.39-11,221.43

Finding the Fourth Proportional to 12,086.51, 18,042.39 and 11,221.43

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Solution

The fourth proportional to 12,086.51, 18,042.39 and 11,221.43 is: 16,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.51 : 18,042.39 = 11,221.43 : x
  2. Step 2: Convert to fraction form
    12,086.51/18,042.39 = 11,221.43/x
  3. Step 3: Cross multiply
    12,086.51x = 18,042.39 × 11,221.43
  4. Step 4: Simplify right side
    12,086.51x = 202,461,326.21
  5. Step 5: Solve for x
    x = 202,461,326.21/12,086.51
  6. Step 6: Final answer
    x = 16,751.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.