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Finding the Fourth Proportional to 8,912.12, 12,297.43 and 4,933.22

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Solution

The fourth proportional to 8,912.12, 12,297.43 and 4,933.22 is: 6,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.12 : 12,297.43 = 4,933.22 : x
  2. Step 2: Convert to fraction form
    8,912.12/12,297.43 = 4,933.22/x
  3. Step 3: Cross multiply
    8,912.12x = 12,297.43 × 4,933.22
  4. Step 4: Simplify right side
    8,912.12x = 60,665,853.80
  5. Step 5: Solve for x
    x = 60,665,853.80/8,912.12
  6. Step 6: Final answer
    x = 6,807.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.