Home / 18,814.94-25,943.32-11,999.86

Finding the Fourth Proportional to 18,814.94, 25,943.32 and 11,999.86

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Solution

The fourth proportional to 18,814.94, 25,943.32 and 11,999.86 is: 16,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.94 : 25,943.32 = 11,999.86 : x
  2. Step 2: Convert to fraction form
    18,814.94/25,943.32 = 11,999.86/x
  3. Step 3: Cross multiply
    18,814.94x = 25,943.32 × 11,999.86
  4. Step 4: Simplify right side
    18,814.94x = 311,316,207.94
  5. Step 5: Solve for x
    x = 311,316,207.94/18,814.94
  6. Step 6: Final answer
    x = 16,546.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.