Home / 8,276.50-12,412.32-2,431.72

Finding the Fourth Proportional to 8,276.50, 12,412.32 and 2,431.72

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Solution

The fourth proportional to 8,276.50, 12,412.32 and 2,431.72 is: 3,646.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.50 : 12,412.32 = 2,431.72 : x
  2. Step 2: Convert to fraction form
    8,276.50/12,412.32 = 2,431.72/x
  3. Step 3: Cross multiply
    8,276.50x = 12,412.32 × 2,431.72
  4. Step 4: Simplify right side
    8,276.50x = 30,183,286.79
  5. Step 5: Solve for x
    x = 30,183,286.79/8,276.50
  6. Step 6: Final answer
    x = 3,646.87

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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.