Home / 8,431.44-12,648.96-2,587.86

Finding the Fourth Proportional to 8,431.44, 12,648.96 and 2,587.86

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Solution

The fourth proportional to 8,431.44, 12,648.96 and 2,587.86 is: 3,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.44 : 12,648.96 = 2,587.86 : x
  2. Step 2: Convert to fraction form
    8,431.44/12,648.96 = 2,587.86/x
  3. Step 3: Cross multiply
    8,431.44x = 12,648.96 × 2,587.86
  4. Step 4: Simplify right side
    8,431.44x = 32,733,737.63
  5. Step 5: Solve for x
    x = 32,733,737.63/8,431.44
  6. Step 6: Final answer
    x = 3,882.34

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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.