Home / 18,191.64-27,287.42-5,711.62

Finding the Fourth Proportional to 18,191.64, 27,287.42 and 5,711.62

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Solution

The fourth proportional to 18,191.64, 27,287.42 and 5,711.62 is: 8,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.64 : 27,287.42 = 5,711.62 : x
  2. Step 2: Convert to fraction form
    18,191.64/27,287.42 = 5,711.62/x
  3. Step 3: Cross multiply
    18,191.64x = 27,287.42 × 5,711.62
  4. Step 4: Simplify right side
    18,191.64x = 155,855,373.82
  5. Step 5: Solve for x
    x = 155,855,373.82/18,191.64
  6. Step 6: Final answer
    x = 8,567.42

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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.