Home / 11,279.64-16,916.17-3,381.84

Finding the Fourth Proportional to 11,279.64, 16,916.17 and 3,381.84

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Solution

The fourth proportional to 11,279.64, 16,916.17 and 3,381.84 is: 5,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.64 : 16,916.17 = 3,381.84 : x
  2. Step 2: Convert to fraction form
    11,279.64/16,916.17 = 3,381.84/x
  3. Step 3: Cross multiply
    11,279.64x = 16,916.17 × 3,381.84
  4. Step 4: Simplify right side
    11,279.64x = 57,207,780.35
  5. Step 5: Solve for x
    x = 57,207,780.35/11,279.64
  6. Step 6: Final answer
    x = 5,071.77

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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.