Home / 8,147.50-12,221.25-2,953.38

Finding the Fourth Proportional to 8,147.50, 12,221.25 and 2,953.38

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Solution

The fourth proportional to 8,147.50, 12,221.25 and 2,953.38 is: 4,430.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.50 : 12,221.25 = 2,953.38 : x
  2. Step 2: Convert to fraction form
    8,147.50/12,221.25 = 2,953.38/x
  3. Step 3: Cross multiply
    8,147.50x = 12,221.25 × 2,953.38
  4. Step 4: Simplify right side
    8,147.50x = 36,093,995.33
  5. Step 5: Solve for x
    x = 36,093,995.33/8,147.50
  6. Step 6: Final answer
    x = 4,430.07

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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.