Home / 9,791.46-13,512.22-5,315.21

Finding the Fourth Proportional to 9,791.46, 13,512.22 and 5,315.21

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Solution

The fourth proportional to 9,791.46, 13,512.22 and 5,315.21 is: 7,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.46 : 13,512.22 = 5,315.21 : x
  2. Step 2: Convert to fraction form
    9,791.46/13,512.22 = 5,315.21/x
  3. Step 3: Cross multiply
    9,791.46x = 13,512.22 × 5,315.21
  4. Step 4: Simplify right side
    9,791.46x = 71,820,286.87
  5. Step 5: Solve for x
    x = 71,820,286.87/9,791.46
  6. Step 6: Final answer
    x = 7,334.99

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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.