Home / 12,819.20-19,204.20-9,883.04

Finding the Fourth Proportional to 12,819.20, 19,204.20 and 9,883.04

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Solution

The fourth proportional to 12,819.20, 19,204.20 and 9,883.04 is: 14,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.20 : 19,204.20 = 9,883.04 : x
  2. Step 2: Convert to fraction form
    12,819.20/19,204.20 = 9,883.04/x
  3. Step 3: Cross multiply
    12,819.20x = 19,204.20 × 9,883.04
  4. Step 4: Simplify right side
    12,819.20x = 189,795,876.77
  5. Step 5: Solve for x
    x = 189,795,876.77/12,819.20
  6. Step 6: Final answer
    x = 14,805.59

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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.