Home / 11,631.20-17,438.21-3,729.14

Finding the Fourth Proportional to 11,631.20, 17,438.21 and 3,729.14

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Solution

The fourth proportional to 11,631.20, 17,438.21 and 3,729.14 is: 5,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.20 : 17,438.21 = 3,729.14 : x
  2. Step 2: Convert to fraction form
    11,631.20/17,438.21 = 3,729.14/x
  3. Step 3: Cross multiply
    11,631.20x = 17,438.21 × 3,729.14
  4. Step 4: Simplify right side
    11,631.20x = 65,029,420.60
  5. Step 5: Solve for x
    x = 65,029,420.60/11,631.20
  6. Step 6: Final answer
    x = 5,590.95

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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.