Home / 12,012.41-18,019.22-4,614.27

Finding the Fourth Proportional to 12,012.41, 18,019.22 and 4,614.27

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Solution

The fourth proportional to 12,012.41, 18,019.22 and 4,614.27 is: 6,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.41 : 18,019.22 = 4,614.27 : x
  2. Step 2: Convert to fraction form
    12,012.41/18,019.22 = 4,614.27/x
  3. Step 3: Cross multiply
    12,012.41x = 18,019.22 × 4,614.27
  4. Step 4: Simplify right side
    12,012.41x = 83,145,523.20
  5. Step 5: Solve for x
    x = 83,145,523.20/12,012.41
  6. Step 6: Final answer
    x = 6,921.64

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Half scale
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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.