Home / 10,891.62-16,349.73-4,322.42

Finding the Fourth Proportional to 10,891.62, 16,349.73 and 4,322.42

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Solution

The fourth proportional to 10,891.62, 16,349.73 and 4,322.42 is: 6,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.62 : 16,349.73 = 4,322.42 : x
  2. Step 2: Convert to fraction form
    10,891.62/16,349.73 = 4,322.42/x
  3. Step 3: Cross multiply
    10,891.62x = 16,349.73 × 4,322.42
  4. Step 4: Simplify right side
    10,891.62x = 70,670,318.20
  5. Step 5: Solve for x
    x = 70,670,318.20/10,891.62
  6. Step 6: Final answer
    x = 6,488.50

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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.