Home / 8,142.33-12,200.78-6,297.99

Finding the Fourth Proportional to 8,142.33, 12,200.78 and 6,297.99

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Solution

The fourth proportional to 8,142.33, 12,200.78 and 6,297.99 is: 9,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.33 : 12,200.78 = 6,297.99 : x
  2. Step 2: Convert to fraction form
    8,142.33/12,200.78 = 6,297.99/x
  3. Step 3: Cross multiply
    8,142.33x = 12,200.78 × 6,297.99
  4. Step 4: Simplify right side
    8,142.33x = 76,840,358.94
  5. Step 5: Solve for x
    x = 76,840,358.94/8,142.33
  6. Step 6: Final answer
    x = 9,437.15

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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.