Home / 14,218.98-21,331.50-5,453.82

Finding the Fourth Proportional to 14,218.98, 21,331.50 and 5,453.82

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Solution

The fourth proportional to 14,218.98, 21,331.50 and 5,453.82 is: 8,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.98 : 21,331.50 = 5,453.82 : x
  2. Step 2: Convert to fraction form
    14,218.98/21,331.50 = 5,453.82/x
  3. Step 3: Cross multiply
    14,218.98x = 21,331.50 × 5,453.82
  4. Step 4: Simplify right side
    14,218.98x = 116,338,161.33
  5. Step 5: Solve for x
    x = 116,338,161.33/14,218.98
  6. Step 6: Final answer
    x = 8,181.89

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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.