Home / 9,132.40-13,698.60-3,286.90

Finding the Fourth Proportional to 9,132.40, 13,698.60 and 3,286.90

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Solution

The fourth proportional to 9,132.40, 13,698.60 and 3,286.90 is: 4,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,132.40 : 13,698.60 = 3,286.90 : x
  2. Step 2: Convert to fraction form
    9,132.40/13,698.60 = 3,286.90/x
  3. Step 3: Cross multiply
    9,132.40x = 13,698.60 × 3,286.90
  4. Step 4: Simplify right side
    9,132.40x = 45,025,928.34
  5. Step 5: Solve for x
    x = 45,025,928.34/9,132.40
  6. Step 6: Final answer
    x = 4,930.35

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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.