Home / 8,128.03-11,216.58-4,591.03

Finding the Fourth Proportional to 8,128.03, 11,216.58 and 4,591.03

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Solution

The fourth proportional to 8,128.03, 11,216.58 and 4,591.03 is: 6,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.03 : 11,216.58 = 4,591.03 : x
  2. Step 2: Convert to fraction form
    8,128.03/11,216.58 = 4,591.03/x
  3. Step 3: Cross multiply
    8,128.03x = 11,216.58 × 4,591.03
  4. Step 4: Simplify right side
    8,128.03x = 51,495,655.28
  5. Step 5: Solve for x
    x = 51,495,655.28/8,128.03
  6. Step 6: Final answer
    x = 6,335.56

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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.