Home / 8,200.60-12,288.30-6,110.80

Finding the Fourth Proportional to 8,200.60, 12,288.30 and 6,110.80

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Solution

The fourth proportional to 8,200.60, 12,288.30 and 6,110.80 is: 9,156.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.60 : 12,288.30 = 6,110.80 : x
  2. Step 2: Convert to fraction form
    8,200.60/12,288.30 = 6,110.80/x
  3. Step 3: Cross multiply
    8,200.60x = 12,288.30 × 6,110.80
  4. Step 4: Simplify right side
    8,200.60x = 75,091,343.64
  5. Step 5: Solve for x
    x = 75,091,343.64/8,200.60
  6. Step 6: Final answer
    x = 9,156.81

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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.