Home / 12,445.68-18,662.08-3,679.52

Finding the Fourth Proportional to 12,445.68, 18,662.08 and 3,679.52

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Solution

The fourth proportional to 12,445.68, 18,662.08 and 3,679.52 is: 5,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.68 : 18,662.08 = 3,679.52 : x
  2. Step 2: Convert to fraction form
    12,445.68/18,662.08 = 3,679.52/x
  3. Step 3: Cross multiply
    12,445.68x = 18,662.08 × 3,679.52
  4. Step 4: Simplify right side
    12,445.68x = 68,667,496.60
  5. Step 5: Solve for x
    x = 68,667,496.60/12,445.68
  6. Step 6: Final answer
    x = 5,517.38

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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.