Home / 8,412.38-12,618.56-2,256.38

Finding the Fourth Proportional to 8,412.38, 12,618.56 and 2,256.38

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Solution

The fourth proportional to 8,412.38, 12,618.56 and 2,256.38 is: 3,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.38 : 12,618.56 = 2,256.38 : x
  2. Step 2: Convert to fraction form
    8,412.38/12,618.56 = 2,256.38/x
  3. Step 3: Cross multiply
    8,412.38x = 12,618.56 × 2,256.38
  4. Step 4: Simplify right side
    8,412.38x = 28,472,208.96
  5. Step 5: Solve for x
    x = 28,472,208.96/8,412.38
  6. Step 6: Final answer
    x = 3,384.56

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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.