Home / 8,001.20-12,015.30-6,683.60

Finding the Fourth Proportional to 8,001.20, 12,015.30 and 6,683.60

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Solution

The fourth proportional to 8,001.20, 12,015.30 and 6,683.60 is: 10,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.20 : 12,015.30 = 6,683.60 : x
  2. Step 2: Convert to fraction form
    8,001.20/12,015.30 = 6,683.60/x
  3. Step 3: Cross multiply
    8,001.20x = 12,015.30 × 6,683.60
  4. Step 4: Simplify right side
    8,001.20x = 80,305,399.00
  5. Step 5: Solve for x
    x = 80,305,399.00/8,001.20
  6. Step 6: Final answer
    x = 10,036.68

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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.