Home / 7,481.10-11,221.65-4,856.70

Finding the Fourth Proportional to 7,481.10, 11,221.65 and 4,856.70

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Solution

The fourth proportional to 7,481.10, 11,221.65 and 4,856.70 is: 7,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.10 : 11,221.65 = 4,856.70 : x
  2. Step 2: Convert to fraction form
    7,481.10/11,221.65 = 4,856.70/x
  3. Step 3: Cross multiply
    7,481.10x = 11,221.65 × 4,856.70
  4. Step 4: Simplify right side
    7,481.10x = 54,500,187.56
  5. Step 5: Solve for x
    x = 54,500,187.56/7,481.10
  6. Step 6: Final answer
    x = 7,285.05

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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.