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Finding the Fourth Proportional to 9,414.80, 14,122.20 and 8,493.20

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Solution

The fourth proportional to 9,414.80, 14,122.20 and 8,493.20 is: 12,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,414.80 : 14,122.20 = 8,493.20 : x
  2. Step 2: Convert to fraction form
    9,414.80/14,122.20 = 8,493.20/x
  3. Step 3: Cross multiply
    9,414.80x = 14,122.20 × 8,493.20
  4. Step 4: Simplify right side
    9,414.80x = 119,942,669.04
  5. Step 5: Solve for x
    x = 119,942,669.04/9,414.80
  6. Step 6: Final answer
    x = 12,739.80

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Similar ratio
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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.