Home / 11,719.36-16,176.48-7,744

Finding the Fourth Proportional to 11,719.36, 16,176.48 and 7,744

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Solution

The fourth proportional to 11,719.36, 16,176.48 and 7,744 is: 10,689.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.36 : 16,176.48 = 7,744 : x
  2. Step 2: Convert to fraction form
    11,719.36/16,176.48 = 7,744/x
  3. Step 3: Cross multiply
    11,719.36x = 16,176.48 × 7,744
  4. Step 4: Simplify right side
    11,719.36x = 125,270,661.12
  5. Step 5: Solve for x
    x = 125,270,661.12/11,719.36
  6. Step 6: Final answer
    x = 10,689.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.