Home / 12,613.24-18,932.82-12,146.68

Finding the Fourth Proportional to 12,613.24, 18,932.82 and 12,146.68

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Solution

The fourth proportional to 12,613.24, 18,932.82 and 12,146.68 is: 18,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.24 : 18,932.82 = 12,146.68 : x
  2. Step 2: Convert to fraction form
    12,613.24/18,932.82 = 12,146.68/x
  3. Step 3: Cross multiply
    12,613.24x = 18,932.82 × 12,146.68
  4. Step 4: Simplify right side
    12,613.24x = 229,970,906.04
  5. Step 5: Solve for x
    x = 229,970,906.04/12,613.24
  6. Step 6: Final answer
    x = 18,232.50

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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.