Home / 10,891.22-15,028.81-6,110.06

Finding the Fourth Proportional to 10,891.22, 15,028.81 and 6,110.06

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Solution

The fourth proportional to 10,891.22, 15,028.81 and 6,110.06 is: 8,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.22 : 15,028.81 = 6,110.06 : x
  2. Step 2: Convert to fraction form
    10,891.22/15,028.81 = 6,110.06/x
  3. Step 3: Cross multiply
    10,891.22x = 15,028.81 × 6,110.06
  4. Step 4: Simplify right side
    10,891.22x = 91,826,930.83
  5. Step 5: Solve for x
    x = 91,826,930.83/10,891.22
  6. Step 6: Final answer
    x = 8,431.28

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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.