Home / 11,819.88-17,740.62-5,980.56

Finding the Fourth Proportional to 11,819.88, 17,740.62 and 5,980.56

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Solution

The fourth proportional to 11,819.88, 17,740.62 and 5,980.56 is: 8,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.88 : 17,740.62 = 5,980.56 : x
  2. Step 2: Convert to fraction form
    11,819.88/17,740.62 = 5,980.56/x
  3. Step 3: Cross multiply
    11,819.88x = 17,740.62 × 5,980.56
  4. Step 4: Simplify right side
    11,819.88x = 106,098,842.35
  5. Step 5: Solve for x
    x = 106,098,842.35/11,819.88
  6. Step 6: Final answer
    x = 8,976.30

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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.