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Finding the Fourth Proportional to 8,392.97, 12,590.96 and 3,459.92

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Solution

The fourth proportional to 8,392.97, 12,590.96 and 3,459.92 is: 5,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.97 : 12,590.96 = 3,459.92 : x
  2. Step 2: Convert to fraction form
    8,392.97/12,590.96 = 3,459.92/x
  3. Step 3: Cross multiply
    8,392.97x = 12,590.96 × 3,459.92
  4. Step 4: Simplify right side
    8,392.97x = 43,563,634.07
  5. Step 5: Solve for x
    x = 43,563,634.07/8,392.97
  6. Step 6: Final answer
    x = 5,190.49

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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.