Home / 8,300.40-11,469.12-6,635.55

Finding the Fourth Proportional to 8,300.40, 11,469.12 and 6,635.55

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Solution

The fourth proportional to 8,300.40, 11,469.12 and 6,635.55 is: 9,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300.40 : 11,469.12 = 6,635.55 : x
  2. Step 2: Convert to fraction form
    8,300.40/11,469.12 = 6,635.55/x
  3. Step 3: Cross multiply
    8,300.40x = 11,469.12 × 6,635.55
  4. Step 4: Simplify right side
    8,300.40x = 76,103,919.22
  5. Step 5: Solve for x
    x = 76,103,919.22/8,300.40
  6. Step 6: Final answer
    x = 9,168.71

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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.