Home / 12,230.88-18,359.98-11,427.82

Finding the Fourth Proportional to 12,230.88, 18,359.98 and 11,427.82

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Solution

The fourth proportional to 12,230.88, 18,359.98 and 11,427.82 is: 17,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.88 : 18,359.98 = 11,427.82 : x
  2. Step 2: Convert to fraction form
    12,230.88/18,359.98 = 11,427.82/x
  3. Step 3: Cross multiply
    12,230.88x = 18,359.98 × 11,427.82
  4. Step 4: Simplify right side
    12,230.88x = 209,814,546.64
  5. Step 5: Solve for x
    x = 209,814,546.64/12,230.88
  6. Step 6: Final answer
    x = 17,154.49

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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.