Home / 7,461.20-11,204.60-7,230.80

Finding the Fourth Proportional to 7,461.20, 11,204.60 and 7,230.80

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Solution

The fourth proportional to 7,461.20, 11,204.60 and 7,230.80 is: 10,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461.20 : 11,204.60 = 7,230.80 : x
  2. Step 2: Convert to fraction form
    7,461.20/11,204.60 = 7,230.80/x
  3. Step 3: Cross multiply
    7,461.20x = 11,204.60 × 7,230.80
  4. Step 4: Simplify right side
    7,461.20x = 81,018,221.68
  5. Step 5: Solve for x
    x = 81,018,221.68/7,461.20
  6. Step 6: Final answer
    x = 10,858.60

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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.