Home / 8,103.03-12,128.09-4,396.07

Finding the Fourth Proportional to 8,103.03, 12,128.09 and 4,396.07

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Solution

The fourth proportional to 8,103.03, 12,128.09 and 4,396.07 is: 6,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.03 : 12,128.09 = 4,396.07 : x
  2. Step 2: Convert to fraction form
    8,103.03/12,128.09 = 4,396.07/x
  3. Step 3: Cross multiply
    8,103.03x = 12,128.09 × 4,396.07
  4. Step 4: Simplify right side
    8,103.03x = 53,315,849.99
  5. Step 5: Solve for x
    x = 53,315,849.99/8,103.03
  6. Step 6: Final answer
    x = 6,579.74

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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.