Home / 11,328.43-16,991.33-3,009.11

Finding the Fourth Proportional to 11,328.43, 16,991.33 and 3,009.11

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Solution

The fourth proportional to 11,328.43, 16,991.33 and 3,009.11 is: 4,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.43 : 16,991.33 = 3,009.11 : x
  2. Step 2: Convert to fraction form
    11,328.43/16,991.33 = 3,009.11/x
  3. Step 3: Cross multiply
    11,328.43x = 16,991.33 × 3,009.11
  4. Step 4: Simplify right side
    11,328.43x = 51,128,821.64
  5. Step 5: Solve for x
    x = 51,128,821.64/11,328.43
  6. Step 6: Final answer
    x = 4,513.32

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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.