Home / 8,081.56-12,122.34-2,535.76

Finding the Fourth Proportional to 8,081.56, 12,122.34 and 2,535.76

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Solution

The fourth proportional to 8,081.56, 12,122.34 and 2,535.76 is: 3,803.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.56 : 12,122.34 = 2,535.76 : x
  2. Step 2: Convert to fraction form
    8,081.56/12,122.34 = 2,535.76/x
  3. Step 3: Cross multiply
    8,081.56x = 12,122.34 × 2,535.76
  4. Step 4: Simplify right side
    8,081.56x = 30,739,344.88
  5. Step 5: Solve for x
    x = 30,739,344.88/8,081.56
  6. Step 6: Final answer
    x = 3,803.64

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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.