Home / 13,116.20-19,674.30-8,450.60

Finding the Fourth Proportional to 13,116.20, 19,674.30 and 8,450.60

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Solution

The fourth proportional to 13,116.20, 19,674.30 and 8,450.60 is: 12,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.20 : 19,674.30 = 8,450.60 : x
  2. Step 2: Convert to fraction form
    13,116.20/19,674.30 = 8,450.60/x
  3. Step 3: Cross multiply
    13,116.20x = 19,674.30 × 8,450.60
  4. Step 4: Simplify right side
    13,116.20x = 166,259,639.58
  5. Step 5: Solve for x
    x = 166,259,639.58/13,116.20
  6. Step 6: Final answer
    x = 12,675.90

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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.