Home / 11,107.21-15,301.89-7,743.91

Finding the Fourth Proportional to 11,107.21, 15,301.89 and 7,743.91

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Solution

The fourth proportional to 11,107.21, 15,301.89 and 7,743.91 is: 10,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.21 : 15,301.89 = 7,743.91 : x
  2. Step 2: Convert to fraction form
    11,107.21/15,301.89 = 7,743.91/x
  3. Step 3: Cross multiply
    11,107.21x = 15,301.89 × 7,743.91
  4. Step 4: Simplify right side
    11,107.21x = 118,496,458.99
  5. Step 5: Solve for x
    x = 118,496,458.99/11,107.21
  6. Step 6: Final answer
    x = 10,668.43

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1.5x scale

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.