Home / 10,081.26-15,122.70-2,685.69

Finding the Fourth Proportional to 10,081.26, 15,122.70 and 2,685.69

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Solution

The fourth proportional to 10,081.26, 15,122.70 and 2,685.69 is: 4,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.26 : 15,122.70 = 2,685.69 : x
  2. Step 2: Convert to fraction form
    10,081.26/15,122.70 = 2,685.69/x
  3. Step 3: Cross multiply
    10,081.26x = 15,122.70 × 2,685.69
  4. Step 4: Simplify right side
    10,081.26x = 40,614,884.16
  5. Step 5: Solve for x
    x = 40,614,884.16/10,081.26
  6. Step 6: Final answer
    x = 4,028.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.