Home / 8,114.28-11,189.58-5,986.20

Finding the Fourth Proportional to 8,114.28, 11,189.58 and 5,986.20

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Solution

The fourth proportional to 8,114.28, 11,189.58 and 5,986.20 is: 8,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.28 : 11,189.58 = 5,986.20 : x
  2. Step 2: Convert to fraction form
    8,114.28/11,189.58 = 5,986.20/x
  3. Step 3: Cross multiply
    8,114.28x = 11,189.58 × 5,986.20
  4. Step 4: Simplify right side
    8,114.28x = 66,983,063.80
  5. Step 5: Solve for x
    x = 66,983,063.80/8,114.28
  6. Step 6: Final answer
    x = 8,254.96

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.