Home / 8,188.12-11,298.78-4,650.64

Finding the Fourth Proportional to 8,188.12, 11,298.78 and 4,650.64

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Solution

The fourth proportional to 8,188.12, 11,298.78 and 4,650.64 is: 6,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.12 : 11,298.78 = 4,650.64 : x
  2. Step 2: Convert to fraction form
    8,188.12/11,298.78 = 4,650.64/x
  3. Step 3: Cross multiply
    8,188.12x = 11,298.78 × 4,650.64
  4. Step 4: Simplify right side
    8,188.12x = 52,546,558.22
  5. Step 5: Solve for x
    x = 52,546,558.22/8,188.12
  6. Step 6: Final answer
    x = 6,417.41

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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.