Home / 8,087.20-11,150.40-6,589.60

Finding the Fourth Proportional to 8,087.20, 11,150.40 and 6,589.60

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Solution

The fourth proportional to 8,087.20, 11,150.40 and 6,589.60 is: 9,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.20 : 11,150.40 = 6,589.60 : x
  2. Step 2: Convert to fraction form
    8,087.20/11,150.40 = 6,589.60/x
  3. Step 3: Cross multiply
    8,087.20x = 11,150.40 × 6,589.60
  4. Step 4: Simplify right side
    8,087.20x = 73,476,675.84
  5. Step 5: Solve for x
    x = 73,476,675.84/8,087.20
  6. Step 6: Final answer
    x = 9,085.55

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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.