Home / 11,699.20-17,543.68-3,489.28

Finding the Fourth Proportional to 11,699.20, 17,543.68 and 3,489.28

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Solution

The fourth proportional to 11,699.20, 17,543.68 and 3,489.28 is: 5,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.20 : 17,543.68 = 3,489.28 : x
  2. Step 2: Convert to fraction form
    11,699.20/17,543.68 = 3,489.28/x
  3. Step 3: Cross multiply
    11,699.20x = 17,543.68 × 3,489.28
  4. Step 4: Simplify right side
    11,699.20x = 61,214,811.75
  5. Step 5: Solve for x
    x = 61,214,811.75/11,699.20
  6. Step 6: Final answer
    x = 5,232.39

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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.