Home / 11,078.26-15,284.16-7,101.56

Finding the Fourth Proportional to 11,078.26, 15,284.16 and 7,101.56

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Solution

The fourth proportional to 11,078.26, 15,284.16 and 7,101.56 is: 9,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.26 : 15,284.16 = 7,101.56 : x
  2. Step 2: Convert to fraction form
    11,078.26/15,284.16 = 7,101.56/x
  3. Step 3: Cross multiply
    11,078.26x = 15,284.16 × 7,101.56
  4. Step 4: Simplify right side
    11,078.26x = 108,541,379.29
  5. Step 5: Solve for x
    x = 108,541,379.29/11,078.26
  6. Step 6: Final answer
    x = 9,797.69

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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.