Home / 11,996.91-18,010.98-8,065.77

Finding the Fourth Proportional to 11,996.91, 18,010.98 and 8,065.77

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Solution

The fourth proportional to 11,996.91, 18,010.98 and 8,065.77 is: 12,109.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.91 : 18,010.98 = 8,065.77 : x
  2. Step 2: Convert to fraction form
    11,996.91/18,010.98 = 8,065.77/x
  3. Step 3: Cross multiply
    11,996.91x = 18,010.98 × 8,065.77
  4. Step 4: Simplify right side
    11,996.91x = 145,272,422.15
  5. Step 5: Solve for x
    x = 145,272,422.15/11,996.91
  6. Step 6: Final answer
    x = 12,109.15

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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.