Home / 8,036.20-12,039.90-7,114.60

Finding the Fourth Proportional to 8,036.20, 12,039.90 and 7,114.60

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Solution

The fourth proportional to 8,036.20, 12,039.90 and 7,114.60 is: 10,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.20 : 12,039.90 = 7,114.60 : x
  2. Step 2: Convert to fraction form
    8,036.20/12,039.90 = 7,114.60/x
  3. Step 3: Cross multiply
    8,036.20x = 12,039.90 × 7,114.60
  4. Step 4: Simplify right side
    8,036.20x = 85,659,072.54
  5. Step 5: Solve for x
    x = 85,659,072.54/8,036.20
  6. Step 6: Final answer
    x = 10,659.15

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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.