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Finding the Fourth Proportional to 10,992.82, 16,489.99 and 4,419.01

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Solution

The fourth proportional to 10,992.82, 16,489.99 and 4,419.01 is: 6,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.82 : 16,489.99 = 4,419.01 : x
  2. Step 2: Convert to fraction form
    10,992.82/16,489.99 = 4,419.01/x
  3. Step 3: Cross multiply
    10,992.82x = 16,489.99 × 4,419.01
  4. Step 4: Simplify right side
    10,992.82x = 72,869,430.71
  5. Step 5: Solve for x
    x = 72,869,430.71/10,992.82
  6. Step 6: Final answer
    x = 6,628.82

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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.