Home / 8,065.66-12,103.16-3,385.25

Finding the Fourth Proportional to 8,065.66, 12,103.16 and 3,385.25

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Solution

The fourth proportional to 8,065.66, 12,103.16 and 3,385.25 is: 5,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.66 : 12,103.16 = 3,385.25 : x
  2. Step 2: Convert to fraction form
    8,065.66/12,103.16 = 3,385.25/x
  3. Step 3: Cross multiply
    8,065.66x = 12,103.16 × 3,385.25
  4. Step 4: Simplify right side
    8,065.66x = 40,972,222.39
  5. Step 5: Solve for x
    x = 40,972,222.39/8,065.66
  6. Step 6: Final answer
    x = 5,079.84

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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.