Home / 11,296.72-15,584.20-7,107.28

Finding the Fourth Proportional to 11,296.72, 15,584.20 and 7,107.28

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Solution

The fourth proportional to 11,296.72, 15,584.20 and 7,107.28 is: 9,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.72 : 15,584.20 = 7,107.28 : x
  2. Step 2: Convert to fraction form
    11,296.72/15,584.20 = 7,107.28/x
  3. Step 3: Cross multiply
    11,296.72x = 15,584.20 × 7,107.28
  4. Step 4: Simplify right side
    11,296.72x = 110,761,272.98
  5. Step 5: Solve for x
    x = 110,761,272.98/11,296.72
  6. Step 6: Final answer
    x = 9,804.73

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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.