Home / 8,145.68-12,219.57-2,302.43

Finding the Fourth Proportional to 8,145.68, 12,219.57 and 2,302.43

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Solution

The fourth proportional to 8,145.68, 12,219.57 and 2,302.43 is: 3,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.68 : 12,219.57 = 2,302.43 : x
  2. Step 2: Convert to fraction form
    8,145.68/12,219.57 = 2,302.43/x
  3. Step 3: Cross multiply
    8,145.68x = 12,219.57 × 2,302.43
  4. Step 4: Simplify right side
    8,145.68x = 28,134,735.10
  5. Step 5: Solve for x
    x = 28,134,735.10/8,145.68
  6. Step 6: Final answer
    x = 3,453.95

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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.