Home / 8,432.79-12,650.55-3,168.21

Finding the Fourth Proportional to 8,432.79, 12,650.55 and 3,168.21

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Solution

The fourth proportional to 8,432.79, 12,650.55 and 3,168.21 is: 4,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.79 : 12,650.55 = 3,168.21 : x
  2. Step 2: Convert to fraction form
    8,432.79/12,650.55 = 3,168.21/x
  3. Step 3: Cross multiply
    8,432.79x = 12,650.55 × 3,168.21
  4. Step 4: Simplify right side
    8,432.79x = 40,079,599.02
  5. Step 5: Solve for x
    x = 40,079,599.02/8,432.79
  6. Step 6: Final answer
    x = 4,752.83

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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.