Home / 11,431.26-17,150.40-4,857.30

Finding the Fourth Proportional to 11,431.26, 17,150.40 and 4,857.30

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Solution

The fourth proportional to 11,431.26, 17,150.40 and 4,857.30 is: 7,287.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.26 : 17,150.40 = 4,857.30 : x
  2. Step 2: Convert to fraction form
    11,431.26/17,150.40 = 4,857.30/x
  3. Step 3: Cross multiply
    11,431.26x = 17,150.40 × 4,857.30
  4. Step 4: Simplify right side
    11,431.26x = 83,304,637.92
  5. Step 5: Solve for x
    x = 83,304,637.92/11,431.26
  6. Step 6: Final answer
    x = 7,287.44

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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.