Home / 12,772.60-19,173.30-9,863.80

Finding the Fourth Proportional to 12,772.60, 19,173.30 and 9,863.80

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Solution

The fourth proportional to 12,772.60, 19,173.30 and 9,863.80 is: 14,806.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.60 : 19,173.30 = 9,863.80 : x
  2. Step 2: Convert to fraction form
    12,772.60/19,173.30 = 9,863.80/x
  3. Step 3: Cross multiply
    12,772.60x = 19,173.30 × 9,863.80
  4. Step 4: Simplify right side
    12,772.60x = 189,121,596.54
  5. Step 5: Solve for x
    x = 189,121,596.54/12,772.60
  6. Step 6: Final answer
    x = 14,806.82

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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.