Home / 8,189.56-12,284.30-2,994.20

Finding the Fourth Proportional to 8,189.56, 12,284.30 and 2,994.20

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Solution

The fourth proportional to 8,189.56, 12,284.30 and 2,994.20 is: 4,491.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.56 : 12,284.30 = 2,994.20 : x
  2. Step 2: Convert to fraction form
    8,189.56/12,284.30 = 2,994.20/x
  3. Step 3: Cross multiply
    8,189.56x = 12,284.30 × 2,994.20
  4. Step 4: Simplify right side
    8,189.56x = 36,781,651.06
  5. Step 5: Solve for x
    x = 36,781,651.06/8,189.56
  6. Step 6: Final answer
    x = 4,491.29

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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.