Home / 8,101.94-11,185.84-6,613.40

Finding the Fourth Proportional to 8,101.94, 11,185.84 and 6,613.40

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Solution

The fourth proportional to 8,101.94, 11,185.84 and 6,613.40 is: 9,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.94 : 11,185.84 = 6,613.40 : x
  2. Step 2: Convert to fraction form
    8,101.94/11,185.84 = 6,613.40/x
  3. Step 3: Cross multiply
    8,101.94x = 11,185.84 × 6,613.40
  4. Step 4: Simplify right side
    8,101.94x = 73,976,388.97
  5. Step 5: Solve for x
    x = 73,976,388.97/8,101.94
  6. Step 6: Final answer
    x = 9,130.70

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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.