Home / 8,642.20-12,963.30-6,568.60

Finding the Fourth Proportional to 8,642.20, 12,963.30 and 6,568.60

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Solution

The fourth proportional to 8,642.20, 12,963.30 and 6,568.60 is: 9,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.20 : 12,963.30 = 6,568.60 : x
  2. Step 2: Convert to fraction form
    8,642.20/12,963.30 = 6,568.60/x
  3. Step 3: Cross multiply
    8,642.20x = 12,963.30 × 6,568.60
  4. Step 4: Simplify right side
    8,642.20x = 85,150,732.38
  5. Step 5: Solve for x
    x = 85,150,732.38/8,642.20
  6. Step 6: Final answer
    x = 9,852.90

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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.