Home / 8,528.20-12,789.06-4,081.30

Finding the Fourth Proportional to 8,528.20, 12,789.06 and 4,081.30

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Solution

The fourth proportional to 8,528.20, 12,789.06 and 4,081.30 is: 6,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.20 : 12,789.06 = 4,081.30 : x
  2. Step 2: Convert to fraction form
    8,528.20/12,789.06 = 4,081.30/x
  3. Step 3: Cross multiply
    8,528.20x = 12,789.06 × 4,081.30
  4. Step 4: Simplify right side
    8,528.20x = 52,195,990.58
  5. Step 5: Solve for x
    x = 52,195,990.58/8,528.20
  6. Step 6: Final answer
    x = 6,120.40

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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.