Home / 11,276.14-15,568.73-7,028.90

Finding the Fourth Proportional to 11,276.14, 15,568.73 and 7,028.90

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Solution

The fourth proportional to 11,276.14, 15,568.73 and 7,028.90 is: 9,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.14 : 15,568.73 = 7,028.90 : x
  2. Step 2: Convert to fraction form
    11,276.14/15,568.73 = 7,028.90/x
  3. Step 3: Cross multiply
    11,276.14x = 15,568.73 × 7,028.90
  4. Step 4: Simplify right side
    11,276.14x = 109,431,046.30
  5. Step 5: Solve for x
    x = 109,431,046.30/11,276.14
  6. Step 6: Final answer
    x = 9,704.65

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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.