Home / 12,221.82-18,333.36-4,725.36

Finding the Fourth Proportional to 12,221.82, 18,333.36 and 4,725.36

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Solution

The fourth proportional to 12,221.82, 18,333.36 and 4,725.36 is: 7,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.82 : 18,333.36 = 4,725.36 : x
  2. Step 2: Convert to fraction form
    12,221.82/18,333.36 = 4,725.36/x
  3. Step 3: Cross multiply
    12,221.82x = 18,333.36 × 4,725.36
  4. Step 4: Simplify right side
    12,221.82x = 86,631,726.01
  5. Step 5: Solve for x
    x = 86,631,726.01/12,221.82
  6. Step 6: Final answer
    x = 7,088.28

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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.