Home / 10,821.01-16,232.12-5,279.09

Finding the Fourth Proportional to 10,821.01, 16,232.12 and 5,279.09

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Solution

The fourth proportional to 10,821.01, 16,232.12 and 5,279.09 is: 7,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.01 : 16,232.12 = 5,279.09 : x
  2. Step 2: Convert to fraction form
    10,821.01/16,232.12 = 5,279.09/x
  3. Step 3: Cross multiply
    10,821.01x = 16,232.12 × 5,279.09
  4. Step 4: Simplify right side
    10,821.01x = 85,690,822.37
  5. Step 5: Solve for x
    x = 85,690,822.37/10,821.01
  6. Step 6: Final answer
    x = 7,918.93

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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.