Home / 12,452.72-18,672.60-3,686.44

Finding the Fourth Proportional to 12,452.72, 18,672.60 and 3,686.44

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Solution

The fourth proportional to 12,452.72, 18,672.60 and 3,686.44 is: 5,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.72 : 18,672.60 = 3,686.44 : x
  2. Step 2: Convert to fraction form
    12,452.72/18,672.60 = 3,686.44/x
  3. Step 3: Cross multiply
    12,452.72x = 18,672.60 × 3,686.44
  4. Step 4: Simplify right side
    12,452.72x = 68,835,419.54
  5. Step 5: Solve for x
    x = 68,835,419.54/12,452.72
  6. Step 6: Final answer
    x = 5,527.74

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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.