Home / 12,452.08-18,653.68-8,279.84

Finding the Fourth Proportional to 12,452.08, 18,653.68 and 8,279.84

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Solution

The fourth proportional to 12,452.08, 18,653.68 and 8,279.84 is: 12,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.08 : 18,653.68 = 8,279.84 : x
  2. Step 2: Convert to fraction form
    12,452.08/18,653.68 = 8,279.84/x
  3. Step 3: Cross multiply
    12,452.08x = 18,653.68 × 8,279.84
  4. Step 4: Simplify right side
    12,452.08x = 154,449,485.81
  5. Step 5: Solve for x
    x = 154,449,485.81/12,452.08
  6. Step 6: Final answer
    x = 12,403.51

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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.