Home / 12,730.80-19,096.20-3,966.60

Finding the Fourth Proportional to 12,730.80, 19,096.20 and 3,966.60

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Solution

The fourth proportional to 12,730.80, 19,096.20 and 3,966.60 is: 5,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.80 : 19,096.20 = 3,966.60 : x
  2. Step 2: Convert to fraction form
    12,730.80/19,096.20 = 3,966.60/x
  3. Step 3: Cross multiply
    12,730.80x = 19,096.20 × 3,966.60
  4. Step 4: Simplify right side
    12,730.80x = 75,746,986.92
  5. Step 5: Solve for x
    x = 75,746,986.92/12,730.80
  6. Step 6: Final answer
    x = 5,949.90

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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.