Home / 9,321.60-13,982.40-3,165.60

Finding the Fourth Proportional to 9,321.60, 13,982.40 and 3,165.60

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Solution

The fourth proportional to 9,321.60, 13,982.40 and 3,165.60 is: 4,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.60 : 13,982.40 = 3,165.60 : x
  2. Step 2: Convert to fraction form
    9,321.60/13,982.40 = 3,165.60/x
  3. Step 3: Cross multiply
    9,321.60x = 13,982.40 × 3,165.60
  4. Step 4: Simplify right side
    9,321.60x = 44,262,685.44
  5. Step 5: Solve for x
    x = 44,262,685.44/9,321.60
  6. Step 6: Final answer
    x = 4,748.40

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Similar ratio
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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.