Home / 9,660.40-14,508.20-8,450.80

Finding the Fourth Proportional to 9,660.40, 14,508.20 and 8,450.80

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Solution

The fourth proportional to 9,660.40, 14,508.20 and 8,450.80 is: 12,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.40 : 14,508.20 = 8,450.80 : x
  2. Step 2: Convert to fraction form
    9,660.40/14,508.20 = 8,450.80/x
  3. Step 3: Cross multiply
    9,660.40x = 14,508.20 × 8,450.80
  4. Step 4: Simplify right side
    9,660.40x = 122,605,896.56
  5. Step 5: Solve for x
    x = 122,605,896.56/9,660.40
  6. Step 6: Final answer
    x = 12,691.60

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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.