Home / 9,087.09-12,540.17-5,108.21

Finding the Fourth Proportional to 9,087.09, 12,540.17 and 5,108.21

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Solution

The fourth proportional to 9,087.09, 12,540.17 and 5,108.21 is: 7,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,087.09 : 12,540.17 = 5,108.21 : x
  2. Step 2: Convert to fraction form
    9,087.09/12,540.17 = 5,108.21/x
  3. Step 3: Cross multiply
    9,087.09x = 12,540.17 × 5,108.21
  4. Step 4: Simplify right side
    9,087.09x = 64,057,860.70
  5. Step 5: Solve for x
    x = 64,057,860.70/9,087.09
  6. Step 6: Final answer
    x = 7,049.33

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Double scale
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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.