Home / 8,057.54-11,120.42-4,520.72

Finding the Fourth Proportional to 8,057.54, 11,120.42 and 4,520.72

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Solution

The fourth proportional to 8,057.54, 11,120.42 and 4,520.72 is: 6,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.54 : 11,120.42 = 4,520.72 : x
  2. Step 2: Convert to fraction form
    8,057.54/11,120.42 = 4,520.72/x
  3. Step 3: Cross multiply
    8,057.54x = 11,120.42 × 4,520.72
  4. Step 4: Simplify right side
    8,057.54x = 50,272,310.30
  5. Step 5: Solve for x
    x = 50,272,310.30/8,057.54
  6. Step 6: Final answer
    x = 6,239.17

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Half scale
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Double scale
Find fourth proportional to 8,058.54, 11,121.80 and 4,521.72
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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.