Home / 12,399.03-18,598.55-3,633.98

Finding the Fourth Proportional to 12,399.03, 18,598.55 and 3,633.98

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Solution

The fourth proportional to 12,399.03, 18,598.55 and 3,633.98 is: 5,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.03 : 18,598.55 = 3,633.98 : x
  2. Step 2: Convert to fraction form
    12,399.03/18,598.55 = 3,633.98/x
  3. Step 3: Cross multiply
    12,399.03x = 18,598.55 × 3,633.98
  4. Step 4: Simplify right side
    12,399.03x = 67,586,647.57
  5. Step 5: Solve for x
    x = 67,586,647.57/12,399.03
  6. Step 6: Final answer
    x = 5,450.96

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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.