Home / 11,331.05-16,982.15-6,403.43

Finding the Fourth Proportional to 11,331.05, 16,982.15 and 6,403.43

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Solution

The fourth proportional to 11,331.05, 16,982.15 and 6,403.43 is: 9,597.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.05 : 16,982.15 = 6,403.43 : x
  2. Step 2: Convert to fraction form
    11,331.05/16,982.15 = 6,403.43/x
  3. Step 3: Cross multiply
    11,331.05x = 16,982.15 × 6,403.43
  4. Step 4: Simplify right side
    11,331.05x = 108,744,019.21
  5. Step 5: Solve for x
    x = 108,744,019.21/11,331.05
  6. Step 6: Final answer
    x = 9,597.00

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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.