Home / 12,629.40-18,914.94-8,235.96

Finding the Fourth Proportional to 12,629.40, 18,914.94 and 8,235.96

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Solution

The fourth proportional to 12,629.40, 18,914.94 and 8,235.96 is: 12,334.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.40 : 18,914.94 = 8,235.96 : x
  2. Step 2: Convert to fraction form
    12,629.40/18,914.94 = 8,235.96/x
  3. Step 3: Cross multiply
    12,629.40x = 18,914.94 × 8,235.96
  4. Step 4: Simplify right side
    12,629.40x = 155,782,689.24
  5. Step 5: Solve for x
    x = 155,782,689.24/12,629.40
  6. Step 6: Final answer
    x = 12,334.92

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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.