Home / 11,908.20-17,865.54-5,663.10

Finding the Fourth Proportional to 11,908.20, 17,865.54 and 5,663.10

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Solution

The fourth proportional to 11,908.20, 17,865.54 and 5,663.10 is: 8,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.20 : 17,865.54 = 5,663.10 : x
  2. Step 2: Convert to fraction form
    11,908.20/17,865.54 = 5,663.10/x
  3. Step 3: Cross multiply
    11,908.20x = 17,865.54 × 5,663.10
  4. Step 4: Simplify right side
    11,908.20x = 101,174,339.57
  5. Step 5: Solve for x
    x = 101,174,339.57/11,908.20
  6. Step 6: Final answer
    x = 8,496.19

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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.