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Finding the Fourth Proportional to 8,327.32, 11,490.54 and 8,103.32

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Solution

The fourth proportional to 8,327.32, 11,490.54 and 8,103.32 is: 11,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.32 : 11,490.54 = 8,103.32 : x
  2. Step 2: Convert to fraction form
    8,327.32/11,490.54 = 8,103.32/x
  3. Step 3: Cross multiply
    8,327.32x = 11,490.54 × 8,103.32
  4. Step 4: Simplify right side
    8,327.32x = 93,111,522.59
  5. Step 5: Solve for x
    x = 93,111,522.59/8,327.32
  6. Step 6: Final answer
    x = 11,181.45

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.