Home / 8,287.35-12,433.47-3,905.25

Finding the Fourth Proportional to 8,287.35, 12,433.47 and 3,905.25

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Solution

The fourth proportional to 8,287.35, 12,433.47 and 3,905.25 is: 5,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.35 : 12,433.47 = 3,905.25 : x
  2. Step 2: Convert to fraction form
    8,287.35/12,433.47 = 3,905.25/x
  3. Step 3: Cross multiply
    8,287.35x = 12,433.47 × 3,905.25
  4. Step 4: Simplify right side
    8,287.35x = 48,555,808.72
  5. Step 5: Solve for x
    x = 48,555,808.72/8,287.35
  6. Step 6: Final answer
    x = 5,859.03

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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.