Home / 12,941.40-19,400.22-4,171.80

Finding the Fourth Proportional to 12,941.40, 19,400.22 and 4,171.80

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Solution

The fourth proportional to 12,941.40, 19,400.22 and 4,171.80 is: 6,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.40 : 19,400.22 = 4,171.80 : x
  2. Step 2: Convert to fraction form
    12,941.40/19,400.22 = 4,171.80/x
  3. Step 3: Cross multiply
    12,941.40x = 19,400.22 × 4,171.80
  4. Step 4: Simplify right side
    12,941.40x = 80,933,837.80
  5. Step 5: Solve for x
    x = 80,933,837.80/12,941.40
  6. Step 6: Final answer
    x = 6,253.87

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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.