Home / 8,135.63-12,203.44-1,979.63

Finding the Fourth Proportional to 8,135.63, 12,203.44 and 1,979.63

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Solution

The fourth proportional to 8,135.63, 12,203.44 and 1,979.63 is: 2,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.63 : 12,203.44 = 1,979.63 : x
  2. Step 2: Convert to fraction form
    8,135.63/12,203.44 = 1,979.63/x
  3. Step 3: Cross multiply
    8,135.63x = 12,203.44 × 1,979.63
  4. Step 4: Simplify right side
    8,135.63x = 24,158,229.96
  5. Step 5: Solve for x
    x = 24,158,229.96/8,135.63
  6. Step 6: Final answer
    x = 2,969.44

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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.