Home / 14,181.08-21,265.34-5,409.86

Finding the Fourth Proportional to 14,181.08, 21,265.34 and 5,409.86

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Solution

The fourth proportional to 14,181.08, 21,265.34 and 5,409.86 is: 8,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.08 : 21,265.34 = 5,409.86 : x
  2. Step 2: Convert to fraction form
    14,181.08/21,265.34 = 5,409.86/x
  3. Step 3: Cross multiply
    14,181.08x = 21,265.34 × 5,409.86
  4. Step 4: Simplify right side
    14,181.08x = 115,042,378.88
  5. Step 5: Solve for x
    x = 115,042,378.88/14,181.08
  6. Step 6: Final answer
    x = 8,112.39

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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.