Home / 14,129.71-21,198.66-4,270.44

Finding the Fourth Proportional to 14,129.71, 21,198.66 and 4,270.44

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Solution

The fourth proportional to 14,129.71, 21,198.66 and 4,270.44 is: 6,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.71 : 21,198.66 = 4,270.44 : x
  2. Step 2: Convert to fraction form
    14,129.71/21,198.66 = 4,270.44/x
  3. Step 3: Cross multiply
    14,129.71x = 21,198.66 × 4,270.44
  4. Step 4: Simplify right side
    14,129.71x = 90,527,573.87
  5. Step 5: Solve for x
    x = 90,527,573.87/14,129.71
  6. Step 6: Final answer
    x = 6,406.90

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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.