Home / 11,996.70-18,003.08-4,205.51

Finding the Fourth Proportional to 11,996.70, 18,003.08 and 4,205.51

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Solution

The fourth proportional to 11,996.70, 18,003.08 and 4,205.51 is: 6,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.70 : 18,003.08 = 4,205.51 : x
  2. Step 2: Convert to fraction form
    11,996.70/18,003.08 = 4,205.51/x
  3. Step 3: Cross multiply
    11,996.70x = 18,003.08 × 4,205.51
  4. Step 4: Simplify right side
    11,996.70x = 75,712,132.97
  5. Step 5: Solve for x
    x = 75,712,132.97/11,996.70
  6. Step 6: Final answer
    x = 6,311.08

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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.