Home / 8,186.34-12,281.94-3,806.40

Finding the Fourth Proportional to 8,186.34, 12,281.94 and 3,806.40

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Solution

The fourth proportional to 8,186.34, 12,281.94 and 3,806.40 is: 5,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.34 : 12,281.94 = 3,806.40 : x
  2. Step 2: Convert to fraction form
    8,186.34/12,281.94 = 3,806.40/x
  3. Step 3: Cross multiply
    8,186.34x = 12,281.94 × 3,806.40
  4. Step 4: Simplify right side
    8,186.34x = 46,749,976.42
  5. Step 5: Solve for x
    x = 46,749,976.42/8,186.34
  6. Step 6: Final answer
    x = 5,710.73

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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.