Home / 12,452.05-18,654.18-8,279.47

Finding the Fourth Proportional to 12,452.05, 18,654.18 and 8,279.47

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Solution

The fourth proportional to 12,452.05, 18,654.18 and 8,279.47 is: 12,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.05 : 18,654.18 = 8,279.47 : x
  2. Step 2: Convert to fraction form
    12,452.05/18,654.18 = 8,279.47/x
  3. Step 3: Cross multiply
    12,452.05x = 18,654.18 × 8,279.47
  4. Step 4: Simplify right side
    12,452.05x = 154,446,723.68
  5. Step 5: Solve for x
    x = 154,446,723.68/12,452.05
  6. Step 6: Final answer
    x = 12,403.32

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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.