Home / 8,298.62-12,418.68-5,180.09

Finding the Fourth Proportional to 8,298.62, 12,418.68 and 5,180.09

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Solution

The fourth proportional to 8,298.62, 12,418.68 and 5,180.09 is: 7,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.62 : 12,418.68 = 5,180.09 : x
  2. Step 2: Convert to fraction form
    8,298.62/12,418.68 = 5,180.09/x
  3. Step 3: Cross multiply
    8,298.62x = 12,418.68 × 5,180.09
  4. Step 4: Simplify right side
    8,298.62x = 64,329,817.99
  5. Step 5: Solve for x
    x = 64,329,817.99/8,298.62
  6. Step 6: Final answer
    x = 7,751.87

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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.