Home / 12,819.50-19,229.25-3,585.50

Finding the Fourth Proportional to 12,819.50, 19,229.25 and 3,585.50

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Solution

The fourth proportional to 12,819.50, 19,229.25 and 3,585.50 is: 5,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.50 : 19,229.25 = 3,585.50 : x
  2. Step 2: Convert to fraction form
    12,819.50/19,229.25 = 3,585.50/x
  3. Step 3: Cross multiply
    12,819.50x = 19,229.25 × 3,585.50
  4. Step 4: Simplify right side
    12,819.50x = 68,946,475.88
  5. Step 5: Solve for x
    x = 68,946,475.88/12,819.50
  6. Step 6: Final answer
    x = 5,378.25

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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.