Home / 11,279.12-16,918.61-8,816.02

Finding the Fourth Proportional to 11,279.12, 16,918.61 and 8,816.02

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Solution

The fourth proportional to 11,279.12, 16,918.61 and 8,816.02 is: 13,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.12 : 16,918.61 = 8,816.02 : x
  2. Step 2: Convert to fraction form
    11,279.12/16,918.61 = 8,816.02/x
  3. Step 3: Cross multiply
    11,279.12x = 16,918.61 × 8,816.02
  4. Step 4: Simplify right side
    11,279.12x = 149,154,783.88
  5. Step 5: Solve for x
    x = 149,154,783.88/11,279.12
  6. Step 6: Final answer
    x = 13,223.97

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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.