Home / 11,581.20-17,371.68-2,816.16

Finding the Fourth Proportional to 11,581.20, 17,371.68 and 2,816.16

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Solution

The fourth proportional to 11,581.20, 17,371.68 and 2,816.16 is: 4,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.20 : 17,371.68 = 2,816.16 : x
  2. Step 2: Convert to fraction form
    11,581.20/17,371.68 = 2,816.16/x
  3. Step 3: Cross multiply
    11,581.20x = 17,371.68 × 2,816.16
  4. Step 4: Simplify right side
    11,581.20x = 48,921,430.35
  5. Step 5: Solve for x
    x = 48,921,430.35/11,581.20
  6. Step 6: Final answer
    x = 4,224.21

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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.