Home / 12,849.20-19,276.88-4,084.12

Finding the Fourth Proportional to 12,849.20, 19,276.88 and 4,084.12

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Solution

The fourth proportional to 12,849.20, 19,276.88 and 4,084.12 is: 6,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.20 : 19,276.88 = 4,084.12 : x
  2. Step 2: Convert to fraction form
    12,849.20/19,276.88 = 4,084.12/x
  3. Step 3: Cross multiply
    12,849.20x = 19,276.88 × 4,084.12
  4. Step 4: Simplify right side
    12,849.20x = 78,729,091.15
  5. Step 5: Solve for x
    x = 78,729,091.15/12,849.20
  6. Step 6: Final answer
    x = 6,127.16

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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.