Home / 10,081.44-15,120.96-2,686.44

Finding the Fourth Proportional to 10,081.44, 15,120.96 and 2,686.44

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Solution

The fourth proportional to 10,081.44, 15,120.96 and 2,686.44 is: 4,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.44 : 15,120.96 = 2,686.44 : x
  2. Step 2: Convert to fraction form
    10,081.44/15,120.96 = 2,686.44/x
  3. Step 3: Cross multiply
    10,081.44x = 15,120.96 × 2,686.44
  4. Step 4: Simplify right side
    10,081.44x = 40,621,551.78
  5. Step 5: Solve for x
    x = 40,621,551.78/10,081.44
  6. Step 6: Final answer
    x = 4,029.34

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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.