Home / 14,185.69-21,279.99-5,427.97

Finding the Fourth Proportional to 14,185.69, 21,279.99 and 5,427.97

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Solution

The fourth proportional to 14,185.69, 21,279.99 and 5,427.97 is: 8,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.69 : 21,279.99 = 5,427.97 : x
  2. Step 2: Convert to fraction form
    14,185.69/21,279.99 = 5,427.97/x
  3. Step 3: Cross multiply
    14,185.69x = 21,279.99 × 5,427.97
  4. Step 4: Simplify right side
    14,185.69x = 115,507,147.32
  5. Step 5: Solve for x
    x = 115,507,147.32/14,185.69
  6. Step 6: Final answer
    x = 8,142.51

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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.