Home / 11,918.86-17,874.63-8,244.70

Finding the Fourth Proportional to 11,918.86, 17,874.63 and 8,244.70

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Solution

The fourth proportional to 11,918.86, 17,874.63 and 8,244.70 is: 12,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.86 : 17,874.63 = 8,244.70 : x
  2. Step 2: Convert to fraction form
    11,918.86/17,874.63 = 8,244.70/x
  3. Step 3: Cross multiply
    11,918.86x = 17,874.63 × 8,244.70
  4. Step 4: Simplify right side
    11,918.86x = 147,370,961.96
  5. Step 5: Solve for x
    x = 147,370,961.96/11,918.86
  6. Step 6: Final answer
    x = 12,364.52

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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.