Home / 11,279.49-16,917.18-3,381.81

Finding the Fourth Proportional to 11,279.49, 16,917.18 and 3,381.81

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Solution

The fourth proportional to 11,279.49, 16,917.18 and 3,381.81 is: 5,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.49 : 16,917.18 = 3,381.81 : x
  2. Step 2: Convert to fraction form
    11,279.49/16,917.18 = 3,381.81/x
  3. Step 3: Cross multiply
    11,279.49x = 16,917.18 × 3,381.81
  4. Step 4: Simplify right side
    11,279.49x = 57,210,688.50
  5. Step 5: Solve for x
    x = 57,210,688.50/11,279.49
  6. Step 6: Final answer
    x = 5,072.10

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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.