Home / 8,118.38-11,203.37-4,392.38

Finding the Fourth Proportional to 8,118.38, 11,203.37 and 4,392.38

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Solution

The fourth proportional to 8,118.38, 11,203.37 and 4,392.38 is: 6,061.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.38 : 11,203.37 = 4,392.38 : x
  2. Step 2: Convert to fraction form
    8,118.38/11,203.37 = 4,392.38/x
  3. Step 3: Cross multiply
    8,118.38x = 11,203.37 × 4,392.38
  4. Step 4: Simplify right side
    8,118.38x = 49,209,380.34
  5. Step 5: Solve for x
    x = 49,209,380.34/8,118.38
  6. Step 6: Final answer
    x = 6,061.48

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Half scale
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Double scale
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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.