Home / 11,844.40-17,743.20-7,687.30

Finding the Fourth Proportional to 11,844.40, 17,743.20 and 7,687.30

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Solution

The fourth proportional to 11,844.40, 17,743.20 and 7,687.30 is: 11,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,844.40 : 17,743.20 = 7,687.30 : x
  2. Step 2: Convert to fraction form
    11,844.40/17,743.20 = 7,687.30/x
  3. Step 3: Cross multiply
    11,844.40x = 17,743.20 × 7,687.30
  4. Step 4: Simplify right side
    11,844.40x = 136,397,301.36
  5. Step 5: Solve for x
    x = 136,397,301.36/11,844.40
  6. Step 6: Final answer
    x = 11,515.76

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1.5x scale

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.