Home / 12,133.76-18,203.20-3,814.62

Finding the Fourth Proportional to 12,133.76, 18,203.20 and 3,814.62

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Solution

The fourth proportional to 12,133.76, 18,203.20 and 3,814.62 is: 5,722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.76 : 18,203.20 = 3,814.62 : x
  2. Step 2: Convert to fraction form
    12,133.76/18,203.20 = 3,814.62/x
  3. Step 3: Cross multiply
    12,133.76x = 18,203.20 × 3,814.62
  4. Step 4: Simplify right side
    12,133.76x = 69,438,290.78
  5. Step 5: Solve for x
    x = 69,438,290.78/12,133.76
  6. Step 6: Final answer
    x = 5,722.73

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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.