Home / 9,175.07-12,661.21-5,195.95

Finding the Fourth Proportional to 9,175.07, 12,661.21 and 5,195.95

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Solution

The fourth proportional to 9,175.07, 12,661.21 and 5,195.95 is: 7,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.07 : 12,661.21 = 5,195.95 : x
  2. Step 2: Convert to fraction form
    9,175.07/12,661.21 = 5,195.95/x
  3. Step 3: Cross multiply
    9,175.07x = 12,661.21 × 5,195.95
  4. Step 4: Simplify right side
    9,175.07x = 65,786,988.94
  5. Step 5: Solve for x
    x = 65,786,988.94/9,175.07
  6. Step 6: Final answer
    x = 7,170.19

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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.