Home / 8,116.19-12,169.62-3,180.05

Finding the Fourth Proportional to 8,116.19, 12,169.62 and 3,180.05

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Solution

The fourth proportional to 8,116.19, 12,169.62 and 3,180.05 is: 4,768.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.19 : 12,169.62 = 3,180.05 : x
  2. Step 2: Convert to fraction form
    8,116.19/12,169.62 = 3,180.05/x
  3. Step 3: Cross multiply
    8,116.19x = 12,169.62 × 3,180.05
  4. Step 4: Simplify right side
    8,116.19x = 38,699,939.23
  5. Step 5: Solve for x
    x = 38,699,939.23/8,116.19
  6. Step 6: Final answer
    x = 4,768.24

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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.