Home / 15,414.57-23,121.99-12,145.14

Finding the Fourth Proportional to 15,414.57, 23,121.99 and 12,145.14

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Solution

The fourth proportional to 15,414.57, 23,121.99 and 12,145.14 is: 18,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.57 : 23,121.99 = 12,145.14 : x
  2. Step 2: Convert to fraction form
    15,414.57/23,121.99 = 12,145.14/x
  3. Step 3: Cross multiply
    15,414.57x = 23,121.99 × 12,145.14
  4. Step 4: Simplify right side
    15,414.57x = 280,819,805.63
  5. Step 5: Solve for x
    x = 280,819,805.63/15,414.57
  6. Step 6: Final answer
    x = 18,217.82

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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.