Home / 8,276.12-12,415.54-2,729.79

Finding the Fourth Proportional to 8,276.12, 12,415.54 and 2,729.79

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Solution

The fourth proportional to 8,276.12, 12,415.54 and 2,729.79 is: 4,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.12 : 12,415.54 = 2,729.79 : x
  2. Step 2: Convert to fraction form
    8,276.12/12,415.54 = 2,729.79/x
  3. Step 3: Cross multiply
    8,276.12x = 12,415.54 × 2,729.79
  4. Step 4: Simplify right side
    8,276.12x = 33,891,816.94
  5. Step 5: Solve for x
    x = 33,891,816.94/8,276.12
  6. Step 6: Final answer
    x = 4,095.13

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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.