Home / 8,143.35-12,215.03-3,758.42

Finding the Fourth Proportional to 8,143.35, 12,215.03 and 3,758.42

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Solution

The fourth proportional to 8,143.35, 12,215.03 and 3,758.42 is: 5,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.35 : 12,215.03 = 3,758.42 : x
  2. Step 2: Convert to fraction form
    8,143.35/12,215.03 = 3,758.42/x
  3. Step 3: Cross multiply
    8,143.35x = 12,215.03 × 3,758.42
  4. Step 4: Simplify right side
    8,143.35x = 45,909,133.19
  5. Step 5: Solve for x
    x = 45,909,133.19/8,143.35
  6. Step 6: Final answer
    x = 5,637.62

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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.