Home / 12,157.61-18,236.42-3,838.27

Finding the Fourth Proportional to 12,157.61, 18,236.42 and 3,838.27

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Solution

The fourth proportional to 12,157.61, 18,236.42 and 3,838.27 is: 5,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.61 : 18,236.42 = 3,838.27 : x
  2. Step 2: Convert to fraction form
    12,157.61/18,236.42 = 3,838.27/x
  3. Step 3: Cross multiply
    12,157.61x = 18,236.42 × 3,838.27
  4. Step 4: Simplify right side
    12,157.61x = 69,996,303.79
  5. Step 5: Solve for x
    x = 69,996,303.79/12,157.61
  6. Step 6: Final answer
    x = 5,757.41

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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.