Home / 13,819.91-19,071.99-7,852.59

Finding the Fourth Proportional to 13,819.91, 19,071.99 and 7,852.59

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Solution

The fourth proportional to 13,819.91, 19,071.99 and 7,852.59 is: 10,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.91 : 19,071.99 = 7,852.59 : x
  2. Step 2: Convert to fraction form
    13,819.91/19,071.99 = 7,852.59/x
  3. Step 3: Cross multiply
    13,819.91x = 19,071.99 × 7,852.59
  4. Step 4: Simplify right side
    13,819.91x = 149,764,517.95
  5. Step 5: Solve for x
    x = 149,764,517.95/13,819.91
  6. Step 6: Final answer
    x = 10,836.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.