Home / 11,291.60-16,914.30-5,279.07

Finding the Fourth Proportional to 11,291.60, 16,914.30 and 5,279.07

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Solution

The fourth proportional to 11,291.60, 16,914.30 and 5,279.07 is: 7,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.60 : 16,914.30 = 5,279.07 : x
  2. Step 2: Convert to fraction form
    11,291.60/16,914.30 = 5,279.07/x
  3. Step 3: Cross multiply
    11,291.60x = 16,914.30 × 5,279.07
  4. Step 4: Simplify right side
    11,291.60x = 89,291,773.70
  5. Step 5: Solve for x
    x = 89,291,773.70/11,291.60
  6. Step 6: Final answer
    x = 7,907.81

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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.