Home / 9,078.88-13,611.92-3,527.60

Finding the Fourth Proportional to 9,078.88, 13,611.92 and 3,527.60

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Solution

The fourth proportional to 9,078.88, 13,611.92 and 3,527.60 is: 5,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.88 : 13,611.92 = 3,527.60 : x
  2. Step 2: Convert to fraction form
    9,078.88/13,611.92 = 3,527.60/x
  3. Step 3: Cross multiply
    9,078.88x = 13,611.92 × 3,527.60
  4. Step 4: Simplify right side
    9,078.88x = 48,017,408.99
  5. Step 5: Solve for x
    x = 48,017,408.99/9,078.88
  6. Step 6: Final answer
    x = 5,288.91

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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.