Home / 11,819.09-17,735.53-4,428.74

Finding the Fourth Proportional to 11,819.09, 17,735.53 and 4,428.74

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Solution

The fourth proportional to 11,819.09, 17,735.53 and 4,428.74 is: 6,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.09 : 17,735.53 = 4,428.74 : x
  2. Step 2: Convert to fraction form
    11,819.09/17,735.53 = 4,428.74/x
  3. Step 3: Cross multiply
    11,819.09x = 17,735.53 × 4,428.74
  4. Step 4: Simplify right side
    11,819.09x = 78,546,051.13
  5. Step 5: Solve for x
    x = 78,546,051.13/11,819.09
  6. Step 6: Final answer
    x = 6,645.69

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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.