Home / 10,519.58-15,771.66-4,969.88

Finding the Fourth Proportional to 10,519.58, 15,771.66 and 4,969.88

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Solution

The fourth proportional to 10,519.58, 15,771.66 and 4,969.88 is: 7,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.58 : 15,771.66 = 4,969.88 : x
  2. Step 2: Convert to fraction form
    10,519.58/15,771.66 = 4,969.88/x
  3. Step 3: Cross multiply
    10,519.58x = 15,771.66 × 4,969.88
  4. Step 4: Simplify right side
    10,519.58x = 78,383,257.60
  5. Step 5: Solve for x
    x = 78,383,257.60/10,519.58
  6. Step 6: Final answer
    x = 7,451.18

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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.