Home / 8,640.14-12,962.08-2,796.66

Finding the Fourth Proportional to 8,640.14, 12,962.08 and 2,796.66

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Solution

The fourth proportional to 8,640.14, 12,962.08 and 2,796.66 is: 4,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.14 : 12,962.08 = 2,796.66 : x
  2. Step 2: Convert to fraction form
    8,640.14/12,962.08 = 2,796.66/x
  3. Step 3: Cross multiply
    8,640.14x = 12,962.08 × 2,796.66
  4. Step 4: Simplify right side
    8,640.14x = 36,250,530.65
  5. Step 5: Solve for x
    x = 36,250,530.65/8,640.14
  6. Step 6: Final answer
    x = 4,195.60

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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.