Home / 18,234.92-25,148.68-12,578.69

Finding the Fourth Proportional to 18,234.92, 25,148.68 and 12,578.69

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Solution

The fourth proportional to 18,234.92, 25,148.68 and 12,578.69 is: 17,347.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.92 : 25,148.68 = 12,578.69 : x
  2. Step 2: Convert to fraction form
    18,234.92/25,148.68 = 12,578.69/x
  3. Step 3: Cross multiply
    18,234.92x = 25,148.68 × 12,578.69
  4. Step 4: Simplify right side
    18,234.92x = 316,337,481.05
  5. Step 5: Solve for x
    x = 316,337,481.05/18,234.92
  6. Step 6: Final answer
    x = 17,347.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.