Home / 14,190.54-21,290.67-5,427.96

Finding the Fourth Proportional to 14,190.54, 21,290.67 and 5,427.96

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Solution

The fourth proportional to 14,190.54, 21,290.67 and 5,427.96 is: 8,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.54 : 21,290.67 = 5,427.96 : x
  2. Step 2: Convert to fraction form
    14,190.54/21,290.67 = 5,427.96/x
  3. Step 3: Cross multiply
    14,190.54x = 21,290.67 × 5,427.96
  4. Step 4: Simplify right side
    14,190.54x = 115,564,771.54
  5. Step 5: Solve for x
    x = 115,564,771.54/14,190.54
  6. Step 6: Final answer
    x = 8,143.79

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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.