Home / 8,085.05-11,131.29-6,290.33

Finding the Fourth Proportional to 8,085.05, 11,131.29 and 6,290.33

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Solution

The fourth proportional to 8,085.05, 11,131.29 and 6,290.33 is: 8,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.05 : 11,131.29 = 6,290.33 : x
  2. Step 2: Convert to fraction form
    8,085.05/11,131.29 = 6,290.33/x
  3. Step 3: Cross multiply
    8,085.05x = 11,131.29 × 6,290.33
  4. Step 4: Simplify right side
    8,085.05x = 70,019,431.77
  5. Step 5: Solve for x
    x = 70,019,431.77/8,085.05
  6. Step 6: Final answer
    x = 8,660.36

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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.