Home / 8,132.40-12,198.60-1,976.40

Finding the Fourth Proportional to 8,132.40, 12,198.60 and 1,976.40

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Solution

The fourth proportional to 8,132.40, 12,198.60 and 1,976.40 is: 2,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.40 : 12,198.60 = 1,976.40 : x
  2. Step 2: Convert to fraction form
    8,132.40/12,198.60 = 1,976.40/x
  3. Step 3: Cross multiply
    8,132.40x = 12,198.60 × 1,976.40
  4. Step 4: Simplify right side
    8,132.40x = 24,109,313.04
  5. Step 5: Solve for x
    x = 24,109,313.04/8,132.40
  6. Step 6: Final answer
    x = 2,964.60

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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.