Home / 8,170.20-12,255.30-6,712.20

Finding the Fourth Proportional to 8,170.20, 12,255.30 and 6,712.20

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Solution

The fourth proportional to 8,170.20, 12,255.30 and 6,712.20 is: 10,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.20 : 12,255.30 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    8,170.20/12,255.30 = 6,712.20/x
  3. Step 3: Cross multiply
    8,170.20x = 12,255.30 × 6,712.20
  4. Step 4: Simplify right side
    8,170.20x = 82,260,024.66
  5. Step 5: Solve for x
    x = 82,260,024.66/8,170.20
  6. Step 6: Final answer
    x = 10,068.30

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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.