Home / 12,458.68-18,684.84-3,691.54

Finding the Fourth Proportional to 12,458.68, 18,684.84 and 3,691.54

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Solution

The fourth proportional to 12,458.68, 18,684.84 and 3,691.54 is: 5,536.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.68 : 18,684.84 = 3,691.54 : x
  2. Step 2: Convert to fraction form
    12,458.68/18,684.84 = 3,691.54/x
  3. Step 3: Cross multiply
    12,458.68x = 18,684.84 × 3,691.54
  4. Step 4: Simplify right side
    12,458.68x = 68,975,871.45
  5. Step 5: Solve for x
    x = 68,975,871.45/12,458.68
  6. Step 6: Final answer
    x = 5,536.37

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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.