Home / 8,103.25-12,154.88-2,631.25

Finding the Fourth Proportional to 8,103.25, 12,154.88 and 2,631.25

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Solution

The fourth proportional to 8,103.25, 12,154.88 and 2,631.25 is: 3,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.25 : 12,154.88 = 2,631.25 : x
  2. Step 2: Convert to fraction form
    8,103.25/12,154.88 = 2,631.25/x
  3. Step 3: Cross multiply
    8,103.25x = 12,154.88 × 2,631.25
  4. Step 4: Simplify right side
    8,103.25x = 31,982,528.00
  5. Step 5: Solve for x
    x = 31,982,528.00/8,103.25
  6. Step 6: Final answer
    x = 3,946.88

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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.