Home / 8,118.56-12,176.52-3,184.64

Finding the Fourth Proportional to 8,118.56, 12,176.52 and 3,184.64

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Solution

The fourth proportional to 8,118.56, 12,176.52 and 3,184.64 is: 4,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.56 : 12,176.52 = 3,184.64 : x
  2. Step 2: Convert to fraction form
    8,118.56/12,176.52 = 3,184.64/x
  3. Step 3: Cross multiply
    8,118.56x = 12,176.52 × 3,184.64
  4. Step 4: Simplify right side
    8,118.56x = 38,777,832.65
  5. Step 5: Solve for x
    x = 38,777,832.65/8,118.56
  6. Step 6: Final answer
    x = 4,776.44

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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.