Home / 12,221.83-18,333.09-4,323.23

Finding the Fourth Proportional to 12,221.83, 18,333.09 and 4,323.23

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Solution

The fourth proportional to 12,221.83, 18,333.09 and 4,323.23 is: 6,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.83 : 18,333.09 = 4,323.23 : x
  2. Step 2: Convert to fraction form
    12,221.83/18,333.09 = 4,323.23/x
  3. Step 3: Cross multiply
    12,221.83x = 18,333.09 × 4,323.23
  4. Step 4: Simplify right side
    12,221.83x = 79,258,164.68
  5. Step 5: Solve for x
    x = 79,258,164.68/12,221.83
  6. Step 6: Final answer
    x = 6,484.97

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Double scale
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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.