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Finding the Fourth Proportional to 8,374.56, 12,561.84 and 3,995.08

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Solution

The fourth proportional to 8,374.56, 12,561.84 and 3,995.08 is: 5,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.56 : 12,561.84 = 3,995.08 : x
  2. Step 2: Convert to fraction form
    8,374.56/12,561.84 = 3,995.08/x
  3. Step 3: Cross multiply
    8,374.56x = 12,561.84 × 3,995.08
  4. Step 4: Simplify right side
    8,374.56x = 50,185,555.75
  5. Step 5: Solve for x
    x = 50,185,555.75/8,374.56
  6. Step 6: Final answer
    x = 5,992.62

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Half scale
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Double scale
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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.