Home / 11,320.97-16,976.04-4,200.32

Finding the Fourth Proportional to 11,320.97, 16,976.04 and 4,200.32

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Solution

The fourth proportional to 11,320.97, 16,976.04 and 4,200.32 is: 6,298.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.97 : 16,976.04 = 4,200.32 : x
  2. Step 2: Convert to fraction form
    11,320.97/16,976.04 = 4,200.32/x
  3. Step 3: Cross multiply
    11,320.97x = 16,976.04 × 4,200.32
  4. Step 4: Simplify right side
    11,320.97x = 71,304,858.52
  5. Step 5: Solve for x
    x = 71,304,858.52/11,320.97
  6. Step 6: Final answer
    x = 6,298.47

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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.