Home / 12,450.12-18,675.12-3,685.08

Finding the Fourth Proportional to 12,450.12, 18,675.12 and 3,685.08

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Solution

The fourth proportional to 12,450.12, 18,675.12 and 3,685.08 is: 5,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.12 : 18,675.12 = 3,685.08 : x
  2. Step 2: Convert to fraction form
    12,450.12/18,675.12 = 3,685.08/x
  3. Step 3: Cross multiply
    12,450.12x = 18,675.12 × 3,685.08
  4. Step 4: Simplify right side
    12,450.12x = 68,819,311.21
  5. Step 5: Solve for x
    x = 68,819,311.21/12,450.12
  6. Step 6: Final answer
    x = 5,527.60

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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.