Home / 15,249.21-21,028.46-9,275.06

Finding the Fourth Proportional to 15,249.21, 21,028.46 and 9,275.06

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Solution

The fourth proportional to 15,249.21, 21,028.46 and 9,275.06 is: 12,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.21 : 21,028.46 = 9,275.06 : x
  2. Step 2: Convert to fraction form
    15,249.21/21,028.46 = 9,275.06/x
  3. Step 3: Cross multiply
    15,249.21x = 21,028.46 × 9,275.06
  4. Step 4: Simplify right side
    15,249.21x = 195,040,076.69
  5. Step 5: Solve for x
    x = 195,040,076.69/15,249.21
  6. Step 6: Final answer
    x = 12,790.18

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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.