Home / 8,160.68-12,241.02-5,231.72

Finding the Fourth Proportional to 8,160.68, 12,241.02 and 5,231.72

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Solution

The fourth proportional to 8,160.68, 12,241.02 and 5,231.72 is: 7,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.68 : 12,241.02 = 5,231.72 : x
  2. Step 2: Convert to fraction form
    8,160.68/12,241.02 = 5,231.72/x
  3. Step 3: Cross multiply
    8,160.68x = 12,241.02 × 5,231.72
  4. Step 4: Simplify right side
    8,160.68x = 64,041,589.15
  5. Step 5: Solve for x
    x = 64,041,589.15/8,160.68
  6. Step 6: Final answer
    x = 7,847.58

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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.