Home / 10,231.88-15,347.81-4,080.20

Finding the Fourth Proportional to 10,231.88, 15,347.81 and 4,080.20

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Solution

The fourth proportional to 10,231.88, 15,347.81 and 4,080.20 is: 6,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.88 : 15,347.81 = 4,080.20 : x
  2. Step 2: Convert to fraction form
    10,231.88/15,347.81 = 4,080.20/x
  3. Step 3: Cross multiply
    10,231.88x = 15,347.81 × 4,080.20
  4. Step 4: Simplify right side
    10,231.88x = 62,622,067.82
  5. Step 5: Solve for x
    x = 62,622,067.82/10,231.88
  6. Step 6: Final answer
    x = 6,120.29

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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.