Home / 8,122.65-12,186.14-3,440.04

Finding the Fourth Proportional to 8,122.65, 12,186.14 and 3,440.04

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Solution

The fourth proportional to 8,122.65, 12,186.14 and 3,440.04 is: 5,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.65 : 12,186.14 = 3,440.04 : x
  2. Step 2: Convert to fraction form
    8,122.65/12,186.14 = 3,440.04/x
  3. Step 3: Cross multiply
    8,122.65x = 12,186.14 × 3,440.04
  4. Step 4: Simplify right side
    8,122.65x = 41,920,809.05
  5. Step 5: Solve for x
    x = 41,920,809.05/8,122.65
  6. Step 6: Final answer
    x = 5,160.98

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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.