Home / 11,816.16-17,712.72-5,664.48

Finding the Fourth Proportional to 11,816.16, 17,712.72 and 5,664.48

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Solution

The fourth proportional to 11,816.16, 17,712.72 and 5,664.48 is: 8,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.16 : 17,712.72 = 5,664.48 : x
  2. Step 2: Convert to fraction form
    11,816.16/17,712.72 = 5,664.48/x
  3. Step 3: Cross multiply
    11,816.16x = 17,712.72 × 5,664.48
  4. Step 4: Simplify right side
    11,816.16x = 100,333,348.19
  5. Step 5: Solve for x
    x = 100,333,348.19/11,816.16
  6. Step 6: Final answer
    x = 8,491.20

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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.