Home / 12,819.58-19,166.15-10,867.00

Finding the Fourth Proportional to 12,819.58, 19,166.15 and 10,867.00

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Solution

The fourth proportional to 12,819.58, 19,166.15 and 10,867.00 is: 16,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.58 : 19,166.15 = 10,867.00 : x
  2. Step 2: Convert to fraction form
    12,819.58/19,166.15 = 10,867.00/x
  3. Step 3: Cross multiply
    12,819.58x = 19,166.15 × 10,867.00
  4. Step 4: Simplify right side
    12,819.58x = 208,278,517.36
  5. Step 5: Solve for x
    x = 208,278,517.36/12,819.58
  6. Step 6: Final answer
    x = 16,246.91

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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.