Home / 12,220.83-18,331.59-4,322.23

Finding the Fourth Proportional to 12,220.83, 18,331.59 and 4,322.23

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Solution

The fourth proportional to 12,220.83, 18,331.59 and 4,322.23 is: 6,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.83 : 18,331.59 = 4,322.23 : x
  2. Step 2: Convert to fraction form
    12,220.83/18,331.59 = 4,322.23/x
  3. Step 3: Cross multiply
    12,220.83x = 18,331.59 × 4,322.23
  4. Step 4: Simplify right side
    12,220.83x = 79,233,383.81
  5. Step 5: Solve for x
    x = 79,233,383.81/12,220.83
  6. Step 6: Final answer
    x = 6,483.47

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Half scale
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Double scale
Find fourth proportional to 12,221.83, 18,333.09 and 4,323.23
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.