Home / 8,402.20-12,596.36-3,134.30

Finding the Fourth Proportional to 8,402.20, 12,596.36 and 3,134.30

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Solution

The fourth proportional to 8,402.20, 12,596.36 and 3,134.30 is: 4,698.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.20 : 12,596.36 = 3,134.30 : x
  2. Step 2: Convert to fraction form
    8,402.20/12,596.36 = 3,134.30/x
  3. Step 3: Cross multiply
    8,402.20x = 12,596.36 × 3,134.30
  4. Step 4: Simplify right side
    8,402.20x = 39,480,771.15
  5. Step 5: Solve for x
    x = 39,480,771.15/8,402.20
  6. Step 6: Final answer
    x = 4,698.86

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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.