Home / 12,369.30-18,549.90-3,604.56

Finding the Fourth Proportional to 12,369.30, 18,549.90 and 3,604.56

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Solution

The fourth proportional to 12,369.30, 18,549.90 and 3,604.56 is: 5,405.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.30 : 18,549.90 = 3,604.56 : x
  2. Step 2: Convert to fraction form
    12,369.30/18,549.90 = 3,604.56/x
  3. Step 3: Cross multiply
    12,369.30x = 18,549.90 × 3,604.56
  4. Step 4: Simplify right side
    12,369.30x = 66,864,227.54
  5. Step 5: Solve for x
    x = 66,864,227.54/12,369.30
  6. Step 6: Final answer
    x = 5,405.66

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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.