Home / 12,081.05-18,127.37-6,237.66

Finding the Fourth Proportional to 12,081.05, 18,127.37 and 6,237.66

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Solution

The fourth proportional to 12,081.05, 18,127.37 and 6,237.66 is: 9,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.05 : 18,127.37 = 6,237.66 : x
  2. Step 2: Convert to fraction form
    12,081.05/18,127.37 = 6,237.66/x
  3. Step 3: Cross multiply
    12,081.05x = 18,127.37 × 6,237.66
  4. Step 4: Simplify right side
    12,081.05x = 113,072,370.75
  5. Step 5: Solve for x
    x = 113,072,370.75/12,081.05
  6. Step 6: Final answer
    x = 9,359.48

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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.