Home / 8,690.88-13,033.75-3,759.33

Finding the Fourth Proportional to 8,690.88, 13,033.75 and 3,759.33

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Solution

The fourth proportional to 8,690.88, 13,033.75 and 3,759.33 is: 5,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.88 : 13,033.75 = 3,759.33 : x
  2. Step 2: Convert to fraction form
    8,690.88/13,033.75 = 3,759.33/x
  3. Step 3: Cross multiply
    8,690.88x = 13,033.75 × 3,759.33
  4. Step 4: Simplify right side
    8,690.88x = 48,998,167.39
  5. Step 5: Solve for x
    x = 48,998,167.39/8,690.88
  6. Step 6: Final answer
    x = 5,637.88

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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.