Home / 14,533.32-21,791.82-7,121.88

Finding the Fourth Proportional to 14,533.32, 21,791.82 and 7,121.88

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Solution

The fourth proportional to 14,533.32, 21,791.82 and 7,121.88 is: 10,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,533.32 : 21,791.82 = 7,121.88 : x
  2. Step 2: Convert to fraction form
    14,533.32/21,791.82 = 7,121.88/x
  3. Step 3: Cross multiply
    14,533.32x = 21,791.82 × 7,121.88
  4. Step 4: Simplify right side
    14,533.32x = 155,198,727.02
  5. Step 5: Solve for x
    x = 155,198,727.02/14,533.32
  6. Step 6: Final answer
    x = 10,678.82

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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.